题目内容

-Who's singing in the next room? Is it Lucy?-It________be her.She has gone to New York.

A. can't
B. must
C. shouldn't
D. can

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-Must I go through the radiation (辐射) check when I come back from Japan at the airport these days?-Yes,you ________.

A. can
B. may
C. might
D. must

-We clean the classroom at once?-No,you .You clean it after school.

A. Must;needn't;may
B. Must;mustn't;can
C. Shall;can't;must
D. Need;mustn't;may

Don't be afraid of new words.You can ________in the dictionary.

A. look at them
B. look for them
C. look them up
D. look them over

How I wish I could sleep longer! However, I had to get up as soon as the alarm clock ________.

A. ran off
B. went off
C. took off
D. kick off