单项选择题

So many representatives（）, the conference had to be postponed.

A. to be absent
B. were absent
C. being absent
D. was absent

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填空题

How can people buy food in the fast food restaurantAt some fast food restaurants, people can order their food, pay for it and pick it up without（）。

单项选择题

（）the stress of the examination is over, we can all relax.

A. With
B. Even though
C. For
D. Now that

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