10A0. MODAL VERBS

1. She ___ be ill. I have just seen her playing basket ball in the school yard.

• a. needn't

• b. shouldn't

• c. mustn't

• d. can't

1. Hiking the trail to the peak _____ be dangerous if you are not well prepared for dramatic weather changes. You _____ research the route a little more before you attempt the ascent.

• a. might / can

• b. may / mustn't

• c. can / should

• d. must / needn't

1. Peter has been working for 10 hours. He _______ be very tired now.

• a. needn't

• b. must

• c. has to

• d. should

4. He is unreliable. What he says _______ be believed.

• a. cannot

• b. must not 

• c. may not

• d. might not

1. I _______ find my own way there. You _______ wait for me.

• a. should / can't

• b. have to / must

• c. can / needn't

• d. might / mustn't

1. I was reading the book last night before I went to bed. I never took it out of this room. It ____ be lying around here somewhere. Where ___ it be?

• a. might / needn't

• b. can / should

• c. shouldn't / may

• d. must / can

7. When you have a small child in the house, you _______ leave small objects lying around. Such objects _______ be swallowed, causing serious injury or even death.

• a. should / must

• b. should not / might

• c. needn't / may

• d. mustn't / can't

1. Jenny's engagement ring was precious! It _______ have cost a fortune.

• a. must

• b. should

• c. can

• d. needn't

9. You _____ take your umbrella along with you today. It ______rain later on this afternoon.

• a. ought to / mustn't

• b. needn't / will

• c. will / must

• d. should / might

1. I _____be at the meeting by 10:00. I will probably _____ take a taxi if I want to be on time.

• a. must/ have to

• b. may / must

• c. should / needn't

• d. mustn't / shouldn't