Visitors not to touch the exhibits. A. will requestB. requestC. are requestingD. are requ

发布时间：2020-08-17 11:33:39

Visitors      not to touch the exhibits.
A. will request
B. request
C. are requesting
D. are requested

网友回答

A. will request
B. request
C. are requesting
(答案→)D. are requested
解析：句意为：参观者被要求不触摸展品。所以应该用被动形式。
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