In order to find the missing child, villagers         all they can over the past five hours.
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A
did
B
do
C
had done
D
have been doing
推荐题目
 — When shall we restart our business?— Not until we       our plan.
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A
will finish
B
are finishing
C
are to finish
D
have finished
      ---____ the paper ?--- No, I have still got one page to finish.
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A
Have you done
B
Do you do
C
Did you do
D
Had you done
Let’s watch the news on CNN. It        at eight o’clock.
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A
will start
B
is starting
C
is going to start
D
starts