问题
The pavements are designed to provide easy access for the blind to _______conveniently, which is bound to_______ active effects on people’s opinion on the government’s performance.
A:walk ; produce
B:walking ; producing
C:walk ; producing
D:walking ; produce
B:walking ; producing
C:walk ; producing
D:walking ; produce
正确答案是：
同类题型
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You can take part in the swimming club or the art club and it depends your choice．