题目内容

This is __D__ difficult problem that few students can work it out.

A. so
B. so a
C. such
D. such a

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— Wow! How cool your cup is! — Really? I __C__ it when it was on sale yesterday.

A. buy
B. will buy
C. bought
D. am buying

— When will we start? — As soon as your uncle __A__.

A. arrives
B. will arrive
C. was arriving
D. to arrive

— What do you think of this book? — __C__.

A. It’s ten yuan
B. It’s my brother’s
C. It’s interesting
D. It’s a gift for me

We didn’t catch the train __B__ we got up late.

A. so
B. because
C. until
D. before

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