Passive Voice
Verb tense
Preposition
Error
100

The letter is sent every morning.

They send the letter every morning.

100

Water boils at 100°C, and it will turn into steam when heated beyond that temperature.

Simple Present + Future Simple

100

"Where do you live _______?"
Options:
a) on
b) in
c) at

b)in

100

The Earth go around the sun every 365.24 days.

Goes

200

My grandmother had baked the cake by the time we arrived yesterday.

The cake had been baked by my grandmother by the time we arrived yesterday.

200

Scientists have discovered new species in the rain forest, but many species were also lost due to deforestation.

Present Perfect + Simple Past

200

"Which route should I take _______ the museum?"
Options:
a) to
b) towards
c) from

a) to

200

All plants needs sunlight to be able to complete photosynthesis.

Need
300

Many students have been reading the new collection of books in the library.

The new collection of books in the library have been being read by many students.

300

By the time the study was published, scientists had already been researching the topic for years, and they will continue to gather more data in the future.

Past Perfect + Present Continuous + Future Simple

300

"How do you usually commute _______ work? How do you get home?"
Options:
a) to
b) from
c) at
c) taken away

b) from

300

The great wall of china was build around 2000 years ago across the country.

Built

400

The city council will open a new shopping mall next month, allowing people to shop in a modern space.

A new shopping mall will be opened by the city council next month, allowing people to shop in a modern space.

400

Scientists have discovered that climate change was affecting the ocean's temperature, and by 2030, the research teams will have collected enough data to make more accurate predictions.

Present Perfect + Past Continuous + Future Perfect

400

"Why did you leave the party? Was it _______ the loud music?"
Options:
a) because
b) due to
c) caused for
d) to

b) due to

400

While scientists are currently developing robots to attend elderly people, it remains unclear when they will be sold to the general audience.

Assist

500

The team involving careful planning and teamwork has completed the project after several months of hard work.

The project involving careful planning and teamwork has been completed by the team after several months of hard work.

500

By the time the theory was proven, researchers had been working on the hypothesis for several years, and they will be conducting more experiments over the next few months; by the end of the year, they will have gathered all the necessary evidence to confirm their results.

Past Perfect + Present Continuous + Future Continuous + Future Perfect

500

"Can you tell me what happened _______ the meeting? I couldn't make it on time."
Options:
a) by
b) prior
c) during
d) while
e) at the same time as

a) during

500

Despite facing many challenges, the first modern Olympic Games were efficiently held in Greece in 1896, reviving an ancient tradition.

Successfully