单项选择题

Adequate preparations have to be made in order to make this concert ().

A. to succeed
B. succeeded
C. a success
D. successfully

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单项选择题

Smithsonian’s National Museum is going to show the Hope diamond without its usual setting, because ().

A. the small diamonds in the old setting are of different color
B. the setting has been damaged
C. they want people to see it in its natural beauty
D. the style of the setting is too old.

单项选择题

4().

A. Most accidents are because people are in a hurry.
B. Well, I meant to.
C. You didn’t wake me up.
D. I’m in a hurry.