Rewrite the sentences using the words in bold

1 Do you mind if I leave the door open for a while?

can ...Can I leave the door open for a while?...

2 You're obliged to take notes during the lecture. have

3 I'm sorry, but you aren't allowed to enter this room. must

4 Jack managed to unlock the door. able

5 It wasn't necessary for Ann to cook dinner, but she did. need

6 Let's play a game of chess. could

7 I'm certain Sarah is bored with her work. must

8 I strongly advise you to take up sport. must

9 I'm certain Liz isn't interested in your ideas. can

10 You may take the car tonight if you want. can

Study the situations and respond to each one using an appropriate modal verb.

1 You want to go on holiday with your friends this year. Ask your parents for permission.

...Can I go on holiday with my friends this year?...

2 You are at a job interview. You type fast, you use computers and you speak two foreign languages. Tell the interviewer about your abilities.

3 Your brother is trying to decide what to buy your mother for her birthday. You suggest a box of chocolates.

4 Your jacket is dirty and you want to wear it next week. It is necessary to take it to the dry cleaner's.

5 You want to have a day off work next week. Ask for your boss' permission.

6 You are in the car with your uncle. It's hot and you want him to open the window. Make a request.

7 Your mother is going to the shops. She asks you if you want anything. You tell her it isn't necessary to get anything for you.

Complete the sentences using must or can't.

1 I'm certain they go to bed early on Sunday nights. They … must go to bed early on Sunday nights…

2 I'm sure John didn't stay late at the office. John... can’t have stayed late at the office…

3 I'm certain he hasn't arrived yet. He …

4 I'm certain they are working together. They …

5 I'm sure Amy hasn't finished her homework. Amy …

6 I'm certain she was having a bath when I rang. She …

7 I'm sure he hasn't won the prize. He …

8 I'm sure she is looking for a new house. She …

9 I'm certain Paul didn't invite Linda to the party. Paul …

10 I'm certain you have been planning the project. You …

11 I'm sure she was writing a letter. She …

12 I'm certain they hadn't paid the bill. They …

13 I'm sure he had been fixing the pipe. He …