many, much, any
change the word in ( )
present perfect
zero/first conditional
relative pronouns
100

How _____ of your rubbish do you recycle?

much

100

Prague is a beautiful city with lots of (old) buildings.

Prague is a beautiful city with lots of historic buildings.

100

John (know) his boss for about four months.

John has known his boss for about four months.

100

If the weather is good, we (explore) the forest on Saturday.

will explore

100

He's the man. He invented a new kind of bike. 

He's the man who invented a new kind of bike.

200

How _____ newspapers and magazines do you buy a week?

many

200

In the USA, you can buy (big) burgers.

In the USA, you can buy massive burgers.

200

My sister (work) for many different tech companies.

My sister has worked for many different tech companies.

200

If they find a cure for cancer, many people (live) much longer. 

will live

200

There is the woman. She works in my father's lab. 

There's the woman who works in my father's lab.

300

Do you reuse _____ of your household items for something else?

any

300

This cake is (good). Can I have another piece, please?

This cake is delicious. Can I have another piece, please?

300

She (not eat) Vietnamese food before. 

She hasn't / has not eaten Vietnamese food before.

300

When he comes home from a trip, he (be) usually very tired.

is

300

These are the machines. They use less energy. 

These are the machines that / which use less energy.

400

There aren't _____ recycling centers in my town.

any

400

The book was very (boring) and I didn't want to finish it.

The book was very dull and I didn't want to finish it.

400

They (not be) in the office since 8 am this morning.

They haven't been in the office since 8 am this morning.

400

Those fish (die) if you don't clean the tank!

will die

400

This is the documentary. I was watching it last week. 

This is the documentary that / which I was watching last week.

500

Not _____ people on my street recycle.

many

500

When I first left home I was (sad) because I didn't know anyone and I missed my family.

When I first left home I was miserable because I didn't know anyone and I missed my family.

500
Paul and Ann (buy) a new car.

Paul and Ann have bought a new car.

500

People (become) dehydrated when they don't drink enough water.

become

500

That's the factory. They developed new batteries at the factory.

That's the factory where they developed new batteries.