He is help grandpa.哪个单词错了?
问题描述：
He is help grandpa.哪个单词错了?
答
He is helping his grandpa.
答
helping
答
help 改为helping
答
help
应该为He is helping his gradpa
答
help 改为 helping
解释：be 动词后面接动词的ing形式，表示动作正在进行。
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答
Help去掉
答
is helping
答
He is helping grandpa