题目内容
--What about the protection?
---Let’s keep the surface ____ dirty by putting a cover over it.
| A.far from | B.free from | C.apart from | D.away from |
B
考查短语:keep sth free from 使某物免受什么,句意:这个保护怎么样?让我们使表面免受脏东西通过在上面放一个盖子。所以选B。
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