－Are you coming to Jeff's party?

－I'm not sure. I ________ go to the concert instead.

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I was really anxious about you. You ________ home without a word.

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If he started at 9 o'clock, he ________ be there by now.

[　　]

Man ________ die without water.

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－Would you go out for a walk with me?

－No, I ________. My girl friend is coming.

[　　]

The fire spread through the hotel very quickly but everyone ________ get out.

[　　]

Johnny, you ________ play with the knife, you ________ hurt yourself.

[　　]

You ________ return the book now. You can keep it until next week if you like.

[　　]

John ________ his father about his failure in the exam.

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－Must we clean the house now?

－No, you ________.

[　　]