past form of to be
comparative adjectives
past simple
comparative/superlative adjectives
present perfect
100

It ______cold yesterday.

It was cold yesterday.

100

Our teacher said that lake water is _____ than

river water. (cold)

Our teacher said that lake water is colder than

river water. 

100

He (change)______ his mind about becoming

a cook and now he’s a famous chef.

He didn't change his mind about becoming

a cook and now he’s a famous chef.

100

Dolphins or porpoises? What’s the difference? It’s one of ________ mistakes people make when they identify these animals.

A commonest 

B the most common

C the commoner

Dolphins or porpoises? What’s the difference? It’s one of the most common mistakes people make when they identify these animals.

100

Have you ______rock climbing? (try)

Have you ever tried rock climbing?

200

I _______ tired last night.

I was tired last night.

200

Elephants are a lot than humans. (heavy)

Elephants are a lot heavier than humans.

200

Fiona applied for a part-time job in the record shop,

but they (give)______ her an interview.

Fiona applied for a part-time job in the record shop,

but they didn't give her an interview.

200

Dolphins tend to be ______ and playful.

A acrobaticer 

B more acrobatic

C the most acrobatic

Dolphins tend to be the most acrobatic and playful.

200

I’ve  _______ anything dangerous in my

life. (not do)

I’ve  never done anything dangerous in my

life.

300

The people we met last night ______ French.

The people we met last night were French.

300

Today pollution in my city is _____ than a few

years ago. (bad)

Today pollution in my city is worse than a few

years ago. 

300

My grandfather (finish)______ school and

started to work as a doctor.

My grandfather finished school and

started to work as a doctor.

300

They are among _______ animals on Earth.

A the more intelligent 

B the most intelligent

C most intelligent

They are among the most intelligent animals on Earth.

300

My classmates have ______ a dolphin. (not see)

My classmates have never seen a dolphin.

400

There ______ too many men for the work.

There were too many men for the work.

400

Plastic can be _____ to wildlife than a white

shark! (dangerous)

Plastic can be more dangerous to wildlife than a white shark! 

400

He spent more than he had. But that ________him. Now he has another company.’

A didn’t stopped B not stopped C didn’t stop

He spent more than he had. But that didn’t stop him. Now he has another company.’

400

I think dogs are _______ animals in the world. (sweet)

I think dogs are the sweetest animals in the world.

400

Has he _______ about The Great Pacific

Garbage Patch? (read)

Has he ever read about The Great Pacific

Garbage Patch? 

500

And then there ______ an end of it.

And then there was an end of it.

500

Last winter was _____ than it normally is. (dry)

Last winter was drier than it normally is.

500

successful/did/Bill/Gates/businessman/a/become/

How/?

How did Bill Gates bacome a successful businessman?

500

What ________ insect? (powerful)

What is the most powerful insect?

500

They have ______ the word ‘garbage’

before. (not hear)

They have never heard the word ‘garbage’

before.