Question

You’d better put a screen safety on your computer ________ your eyes from ________．

1. A.
   keep; damaged
2. B.
   stop; being damaged
3. C.
   to prevent; damaged
4. D.
   to protect; being damaged

Answer 1

D
解析：
前面的空要用动词不定式作目的状语，后面的空要用protect sb．/sth．from doing sth．。