题目内容

Now we may be able to say ______ between music and noise or just sound.

A. what is the difference
B. the difference is what
C. what the difference is
D. that what the difference

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Contrary to ______ I had expected, he lost for a second time.

A. that
B. what
C. which
D. who

Professor Smith was so punctual ______, he always arrived to class just as the bell rang.

A. that the day he died
B. until the day he died
C. that until the day he died
D. until the day when he died

______ he came to England to study, he didn’t know how to cook.

A. When
B. since
C. Until
D. Unless

Although Mr smith is one of those teachers who appear to be friendly, ______ he is very hard to deal with.

A. but
B. so
C. so that
D. yet

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