Optimise B1+ Unit 3 (Modal deduction present)

Complete each sentence with a modal verb from the box.
1 I’m sure that ___ be my sister at the door, she always arrives at this time.

• must

• can’t

• could

• may

• might

Complete each sentence with a modal verb from the box.
2 The boy with Anna ___ be her brother or maybe a friend.

• might

• might not

• could

• can’t

• may

Complete each sentence with a modal verb from the box.
3 Your vlog has got two million ‘likes’, so you ___be unhappy.

• can’t

• may

• might not

• might

• could

Complete each sentence with a modal verb from the box.
4 It’s possible that Bianca ___ be in class today. She wasn’t feeling well yesterday.

• might not

• could

• may

• can’t

• might

Complete each sentence with a modal verb from the box.
5 Graham ___ be in his room or possibly in the kitchen.

• might

• may

• could

• can’t

• might not

Choose the correct words.
1 A: Where is Jack? B:
I’m not sure. He could / can’t be in the library; he sometimes goes there.

• could

• can’t

Choose the correct words.
2 A: Oh no! You dropped my mobile!
B: Don’t worry. It must / might be OK. Let’s have a look first.

• must

• might

Choose the correct words.
3 A: I can’t find my tablet.
B: It can’t / must be at school because I saw you bring it home.

• can’t

• must

Choose the correct words.
4 A: Why are those people with cameras and lights outside your house?
B: They can’t / might be making a commercial. People often film in our street.

• can’t

• might

Choose the correct words. 5
A: I wonder what this present is?
B: I don’t know. It could / must be a selfie stick or a tripod. Open it and find out!

• could

• must