1 . As the educator puts it, ________ (expand) your knowledge by reading more books is a wise choice. (所给词的适当形式填空)

2 . All in all, it is high time that we devoted ourselves to ________ (protect) oceans. （所给词的适当形式填空）

3 . 我建议穿暖和点。

4 . 我知道你看书看得快，我认为你应该考虑从图书馆多借两本书。

5 . The radiation amount of a mobile phone for half-hour periods per day is equal to, according to a recent medical study, ___________ (expose) to an X-ray for ten seconds.

6 . There’s no __________ (stop) the supernatural miracles that will occur in your life once you are determined to change your habits.

7 . All the staff are considering __________ (go) to the city center for the fashion show.

8 . This sentence needs ___________ .

A．a improvement

B．improve

C．improving

D．improved

9 . What worried the child most was ________ to visit his mother in the hospital. (根据句意填空)