_____(protect)the environment,they will plant more trees along the lake

问题描述:

_____(protect)the environment,they will plant more trees along the lake

To protect
解释:动词不定式作目的状语。
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__To_ protect__(protect)the environment,they will plant more trees along the lake
不定式作目的状语
为了保护环境,他们将沿着湖种许多树.