Prepositions
articles/
pronouns
singular/
plural
word form
SVA
100

During adolescence, the brain's reward system, which is highly sensitive on dopamine, becomes more active.

During adolescence, the brain's reward system, which is highly sensitive TO dopamine, becomes more active.

(Explanation: sensitive TO)

100

China has a monopoly on one of the cutest creatures in the animal kingdom -- The Giant Panda. This is because the native range of Giant Pandas is entirely within a country's borders.

China has a monopoly on one of the cutest creatures in the animal kingdom -- The Giant Panda. This is because the native range of Giant Pandas is entirely within THE country's borders.

(Explanation: 'a' is an indefinite article, 'the' referring to China is definite)

100

Overall, Telegram's feature and flexibility are well-regarded, ...

Overall, Telegram's FEATURES and flexibility are well-regarded, ...

(Explanation: more than ONE feature)

100

Women's reading, comprehend and writing abilities consistently exceeded that of men.

Women's reading, COMPREHENDING/COMPREHENSION and writing abilities consistently exceeded that of men.

(Explanation: can be continuous verb form to follow 'reading' and 'writing', or noun form 'comprehension' to specify what kind of abilities)

100

Today, there is roughly 2000 of them lumbering around.

Today, there ARE roughly 2000 of them lumbering around.

(Explanation: '2000 of them' is NOT singular)

e.g. There are hundreds of students at the school carnival.

200

Over the past 15 years, there’s been a sea of change as new technologies have generated a growing pile of evidence that there are inherent differences on how men’s and women's brains are wired and how they work.


Over the past 15 years, there’s been a sea of change as new technologies have generated a growing pile of evidence that there are inherent differences IN how men’s and women's brains are wired and how they work.

(Explanation: there are differences IN how...)

200

Women, have the larger hippocampus, which is important for learning and memory, while men have a larger amygdala, which is involved in the memory of their emotions.

Women, have a larger hippocampus, which is important for learning and memory, while men have a larger amygdala, which is involved in the memory of their emotions.

(Explanation: 'the' refers to a definite article, 'a' refers to an indefinite article, or follow the next clause 'men have A larger amygdala')

200

Every plants needs water and sunlight to thrive, but the amount varies, so continue reading to learn which good luck plants best fit your lifestyle.

Every PLANT needs water and sunlight to thrive, but the amount varies, so continue reading to learn which good luck plants best fit your lifestyle.

(Explanation: 'every' is always followed by a singular noun)

200

Depending on the plant you chose, you can bring different kinds of luck into your live and into your home.

Depending on the plant you chose, you can bring different kinds of luck into your LIFE and into your home.

(Explanation: not plural 'lives' because 'your home' is singular)

200

This means the positioning of furniture and even indoor plants matters when creating a flow of harmony that match the natural of the world.

This means the positioning of furniture and even indoor plants matters when creating a flow of harmony that MATCHES the natural of the world.

(Explanation: subject - the positioning of furniture (singular), verb - MATCHES)

300

Instead, they are listed as vulnerable at the International Union for Conservation of Nature and Chinese environmental officials.

Instead, they are listed as vulnerable BY the International Union for Conservation of Nature and Chinese environmental officials.

(Explanation: listed as...BY...)

300

This increased sensitivity can lead young people to seek out thrilling experiences, even where they know the risks involved.

This increased sensitivity can lead young people to seek out thrilling experiences, even WHEN they know the risks involved.

(Explanation: 'where' often refers to a physical location rather than a particular time or situation)

300

This means they can visualise and rotate 3D objects in their mind, determine angles, tracking moving objects, and aim at targets more accurately.

This means they can visualise and rotate 3D objects in their MINDS, determine angles, tracking moving objects, and aim at targets more accurately.

(Explanation: follow plural verb form of 'angles' and 'objects', or refer to plural determiner 'they')

300

This means they can visualise and rotate 3D objects in their mind, determine angles, tracking moving objects, and aim at targets more accurately.

This means they can visualise and rotate 3D objects in their mind, determine angles, TRACK moving objects, and aim at targets more accurately.

(Explanation: follow base verb forms of 'aim' and 'determine' instead of present participle 'tracking')

300

At the same time, the prefrontal cortex—the part of the brain responsible for decision-making and impulse control—are still developing.

At the same time, the prefrontal cortex—the part of the brain responsible for decision-making and impulse control—IS still developing.

(Explanation: subject - the prefrontal cortex, verb - IS)

the prefrontal cortex = still developing

400

According to feng shui experts, there are certain good luck plants that are believed to naturally attract good energy on the space.

According to feng shui experts, there are certain good luck plants that are believed to naturally attract good energy INTO/TO the space.

(Explanation: attarct INTO/TO)

400

Researchers, who we depend on to understand these developmental stages, believe that this period of heightened risk-taking is a crucial part of learning and growth.

Researchers, WHOM we depend on to understand these developmental stages, believe that this period of heightened risk-taking is a crucial part of learning and growth.

(Explanation: 'who' refers to a person performing an action, 'whom' refers to a person receiving the action or following a preposition)

400

To everyone's great relief, such cooperative efforts have been able to encourage breeding as well as the restoration of habitat. 

To everyone's great relief, such cooperative efforts have been able to encourage breeding as well as the restoration of habitats.

(Explanation: restoring more than ONE habitat)

400

They are more adept at retrieval information from long-term memory.

They are more adept at RETRIEVING information from long-term memory.

(Explanation: adept at WHAT? (followed by continuous verb instead of noun to describe what they are adept at))

400

Overall, Telegram's features and flexibility are well-regarded, but its use by various groups raise some privacy and security questions.

Overall, Telegram's features and flexibility are well-regarded, but its use by various groups RAISES some privacy and security questions.

(Explanation: subject - its use (singular), verb - raises)