Choose the correct answer
From present to past
From past to present
Fill the gap
100

My classmate can play basketball very well.

a. He must practice everyday.
b. He must have practised everyday. 

a. He must practice everyday.

100

He might be in the office

He might have been in the office.

100

She might have been on the bus.

She might be on the bus.

100

Keiko always does really well on exams. She __________ (study) a lot.

must study

200

My uncle is very strong. He can lift up to 300 kilograms!

a. He must exercise a lot!
b. He must be exercise a lot! 

a. He must exercise a lot! 

200

Nouha can't go home now. The lesson hasn't finished yet.

Nouha can't have gone home. The lesson hadn't finished.
200

He may have been in the wrong classroom. 

He may be in the wrong classroom

200

Sarah couldn't find her glasses. She thought she ________ (leave) them at her office.

must have left

300

I just saw Mathew and he looks really nervous.

a. He might be going to his driving test.
b. He can be going to his driving test. 

a. He might be going to his driving test.

300

Adam must be very good at Tennis. He practises every Sunday morning.

Adam must have been very good at Tennis. He used to practise every Sunday morning.

300

The cat could have been lost.

The cat could be lost.

300

It _______ (be) cold outside. That man in the street is wearing a coat.

must be

400

John and Steven are running to their next class.

a. They might have been late.
b. They might be late.

b. They might be late.

400

Mehdi might be a bit busy. He didn't show up to class today.

Mehdi might have been a bit busy. He didn't show up to class last time.

400

She couldn't have been at home. I had called her there a million times.

She can't be at home. I called her there a million times.

400

That woman _________ be a doctor! She looks far too young.

can't

500

My cousin just went shopping and bought a lot of clothes.

a. She can't have a lot of money.
b. She must have a lot of money.

b. She must have a lot of money.

500

The teacher couldn't be absent. She loves teaching her students.

The teacher couldn't have been absent. She loved teaching her students. 

500

She seemed exhausted the other day. She might have been working late. 

She seems exhausted. She might be working late.

500

 John always fails the tests, even though he's clever. He ______ study enough.

can't