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【題目】—This wall of air is an effective answer to the problem and it ______ work.
—But it is a question to put such a wall of air around the statue.
A.may
B.must
C.should
D.could

【題目】– Tom, it's too late. Our son ________ be back.
– Don't be anxious. I dare say he ________ have some extra work to do.
A.must，must
B.should ，should
C.should ，must
D.must ，should

A. An official.B. A lawyer.C. A sales manager.

【1】What is the man’s opinion about Literature?

A. It is hard.B. It is helpful.C. It is interesting.

【2】What subject does the woman like most?

A. Photography.B. Art History.C. Geography.

【題目】I make $2,000 a week, 60 surely won't make ______ difference to me.
A.that a big
B.a that big
C.big a that
D.that big a

【題目】—Alice has just lost her husband to heart failure.
—Her ______ smile can't hide her sorrow.
A.arbitrary
B.artificial
C.compulsory
D.conventional

A. She nearly had an accident.B. She knocked into a taxi.C. She is sick.