题目内容

This task is too difficult.
I think we&39; d better turn __ him for help.

A. to
B. of
C. from

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Would you please buy some milk, David？
There_______ in the fridgc.

A. aren’t many
B. are very few
C. isn’t much

---Can I help you？
--Well, I &39;m afraid the box is_______heavy for you, but thank you all the same.

A. so
B. much
C. too

You should always _______some time practicing English if you want to make progress.

A. take
B. spend
C. use

发生溢流关井后,当井口压力不断增大而达到井口允许的承压能力时,应()。

A. 敞开井口放喷
B. 开井循环
C. 节流泄压
D. 继续观察