Nowadays school bus safety has drawn much attention nationwide for children’s safety is w

发布时间：2020-08-16 21:17:51

Nowadays school bus safety has drawn much attention nationwide for children’s safety is      worries parents most.
A. why
B. which
C. that
D. what

网友回答

A. why
B. which
C. that
(答案→)D. what
解析：本题考查表语从句。is后接表语从句，引导词作主语。
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