Tech & Innovation
Explorers & History
The "Grammar Master"
Logic Check
The "Pro" Error Challenge
100

Amazon ________ (founded / was founded) by Jeff Bezos in 1994.

was founded

passive simple past

100

Change to passive: "Explorers discovered the Titanic in 1985".

 "The Titanic was discovered in 1985."

100

After a "by" phrase, which is correct? "The photo was taken by (she / her)".

her (Always use an object pronoun after by).

100

Which sentence is correct? A) The accident was happened. B) The accident happened.

B ("Happen" is intransitive; it has no passive form).

100

Correct the mistake:  "The e-mail was send by my friend yesterday".

"...was sent...".

200

Is this sentence Active or Passive? "Computers process millions of bits of data every second".

Active 

The subject "Computers" does the action.

200

When Lewis and Clark reached the West, maps ________ (were being made / were making) of the new territory.

were being made

200

"Someone gave Alex two free tickets." Change this to passive starting with "Two free tickets...".

"Two free tickets were given to Alex."

200

Can this be passive? "The explorers arrived in 1805".

No ("Arrive" is intransitive).

200

Correct the mistake: "Is your homework being finish right now?".

 "Is your homework being finished..."

300

Fix the mistake: "The first laptop didn't designed in 2010".

"The first laptop wasn't designed in 2010" (Passive negatives use be, not do).

300

Passive or Active? "By 1860, four million people had been brought to the U.S. as slaves".

Passive

300

Why is the agent omitted here? "A lot of food was left in the theater".

The agent is unknown or not important.

300

Walt Disney (died / was died) in 1966.

died (You cannot use be with "die").

300

Correct the mistake: "A new bridge will built next year".

"...will be built..."

400

Change to passive: "Technicians are analyzing the new DNA samples right now".

"The new DNA samples are being analyzed by technicians right now."

400

Fix the mistake: "The Gettysburg Address should read by all students".

 "The Gettysburg Address should be read by all students" (Modal passive needs be).

400

Fix the mistake: "The student was given to a prize for his hard work".

"The student was given a prize..." (If the person is the subject, do not use to).

400

Change to passive if possible: "The climate is changing quickly".

No change possible (When "change" is a natural process, it is intransitive).

400

Correct the mistake: "I was told that you didn't liked the gift".

"...didn't like..."

500

Complete with the Passive Future: "In the future, most cars ________ (drive) by computers".

will be driven (or are going to be driven).

500

Change to passive: "The government has recently resettled thousands of refugees".

"Thousands of refugees have recently been resettled by the government."

500

Change to passive in two ways: "They will offer the scientist a new job".

 "The scientist will be offered a new job."

"A new job will be offered to the scientist."

500

Fix the mistake: "The baby was borned in July".

The baby was born in July.

500

Correct the mistake: "Many books have being written about the Civil War".

"...have been written..."

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