If we all think carefully,we can help---trees.A.protect B.pr

问题描述:

If we all think carefully,we can help___trees.A.protect B.protects C.protecting D.to protecting
1个回答 分类:英语 2014-09-23

问题解答:

我来补答
A.protect
help do sth 帮忙做某事
 
 
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