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Must Deduction CertaintySet 24

1She ..... be late; her flight was delayed by severe weather.

2The lights are off and the door is locked. Kevin ..... be at home now.

3Julie's not at home. She ..... decided to go out after all.

4Fill in the blank:They ..... have forgotten about the meeting. It was in their calendar.

5Do you think Mrs. Chu is sick?She ..... I can't think of anything else that would have kept her from coming.

6Which one means that you are sure of something?

7The train is delayed again; there ..... be some technical issues.

8They ..... be the richest person in the village. He's just bought two luxurious cars.

9The roads ..... be bad, we have a snow day!

10The lights are on. Someone ..... be home.

11Choose the correct forms of the modal verb:I ..... win the race.

12I'm not sure. It ..... be Thai or Indonesian, I think.

13They ..... be very wealthy because they own a private jet and three luxury yachts.

14Which modal is used for logical assumption when you're certain that it's true?

15Tom lives in a mansion. He ..... rich.

16Find the modal verb:He must be very tired. He's been working all day long.

17It's the third time she's been skating this week. She ..... really enjoy it.