1 . In the battle of the COVID-19, Chinese medical workers risk_________(expose) to the virus. （所给词的适当形式填空）

2 . ______ strong sunlight for a long time in summer will cause serious burns, which will make you suffer.

A．Exposed to

B．Exposing to

C．Expose yourself to

D．Being exposed to

3 . Evidence has shown astronauts have been affected severely because of ____ to long periods of weightlessness.

A．exposing

B．exposed

C．being exposed

D．having exposed

4 . The study showed a deep fear among the elderly of being ____________(抛弃，放弃) to the care of strangers. (根据汉语提示单词拼写)

5 . 我们应该尽最大努力去防止儿童被伤害。
We should try our best to ________________.

6 . ____________ (promote) at work made him smile to everyone he met all day. (所给词的适当形式填空)

7 . You are lucky enough to escape ____________ (kill) in the accident. (所给词的适当形式填空)

8 . At last, we had a narrow escape, fortunately escaping __________(hurt) by the polar bear. (用所给词的适当形式填空)

9 . After________ (appoint) as manager of the company, Tom spared no effort________ (improve) commercial profits. （用所给词的适当形式填空）

10 . I don’t like____________________ (bother) when I am playing the piano. (所给词的适当形式填空)