It's dangerous for children _____ that tall tree. [ ]A. are climbing B. to climb C. climb D. cl

题目简介

It's dangerous for children _____ that tall tree. [ ]A. are climbing B. to climb C. climb D. cl

题目详情

It's dangerous for children _____ that tall tree.
[     ]
A. are climbing
B. to climb
C. climb
D. climbed
题型:单选题难度:中档来源:同步题

答案

B

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