__ eye exercises__ good __ your eyes 单项选择A doing;are;forB do;is;forC doing;is;forC to do;are for

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__ eye exercises__ good __ your eyes 单项选择A doing;are;forB do;is;forC doing;is;forC to do;are for

__ eye exercises__ good __ your eyes 单项选择A doing;are;forB do;is;forC doing;is;forC to do;are for
__ eye exercises__ good __ your eyes 单项选择
A doing;are;for
B do;is;for
C doing;is;for
C to do;are for

__ eye exercises__ good __ your eyes 单项选择A doing;are;forB do;is;forC doing;is;forC to do;are for
C do eye exercises 做眼保健操
be good for 对.有好处,有益
动词原形和动词不定式都不能做主语的,动名词V+ing 做主语,谓语动词用单数.
这个句子的意思是:多眼保健操对你的眼睛要好处.

C doing eye exercises 动名词作主语
be good for; do good to 对。。。。有好处
不清楚可以问哦

答案选C to do;are for
做眼保健操对眼睛有好处。

C
动词做主语,只能to do , doing,
当动名词做主语时,用is,be good for sth 是固定搭配

C

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