Could / Can / Have to... / Must / Might / Should

Complete the sentences using the words listed below. Some gaps may have more than one correct answer.

can / could / have to / must / might / should

1. Ted's flight from Amsterdam took more than 11 hours. He __________be exhausted after

such a long flight. He __________ prefer to stay in tonight and get some rest.

2. If you want to get a better feeling for how the city is laid out, you __________ walk downtown and explore the waterfront.

3. 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.

4. 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.

5. Dave: __________ you hold your breath for more than a minute?Nathan: No, I can't.

6. Jenny's engagement ring is enormous! It ___________ have cost a fortune.

7. Please make sure to water my plants while I am gone. If they don't get enough water, they __________ die.

8. I ___________ speak Arabic fluently when I was a child and we lived in Egypt. But after we

moved back to Canada, I ___________ had very little exposure to the language and forgot almost everything I knew as a child. Now, I just say a few things in the language.

9. The book is optional. My professor said we __________ read it if we needed extra credit.

But we ____________ read it if we don't want to.

10. Leo: Where is the spatula? It ___________ be in this drawer but it's not here.Nancy: I just

did a load of dishes last night and they're still in the dish washer. It ____________ be in there.

That's the only other place it ___________ be.

11. You ___________ take your umbrella along with you today. The weatherman on the news said there's a storm north of here and it ___________ rain later on this afternoon.

12. ___________ we pull over at the next rest stop? I really ___________ use the bathroom and I don't know if I hold it until we get to Chicago.

13. Oh no! Frank's wallet is lying on the coffee table. He __________ have left it here last night.

14. Ned: __________ I borrow your lighter for a minute?Stephen: Sure, no problem. Actually,

you __________ keep it if you want to. I've given up smoking.

15. I __________ believe she said that to Megan! She insult her cooking in front of everyone at

the party last night. She __________ have just said she was full or had some salad if she didn't like the meal.

16. Do you _________ chew with your mouth open like that? Geez, it's making me sick watching you eat that piece of pizza.

17. Mrs. Scarlett's body was found in the lounge just moments ago, and it's still warm! Nobody

has left the mansion this evening, so the killer __________ be someone in this room. It

__________ be any one of us!!!

18. Ted: I don't know why Denise starting crying when I mentioned the wedding.Pamela: It

__________ have been what you said about her brother. Or, perhaps she is just nervous. After all, the big day is tomorrow.

19. __________ you always say the first thing that pops into your head? __________ you think once in awhile before you speak?

20. 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? be swallowed,

causing serious injury or even death.