问题描述：
what do you think of his suggestion we all attend the meeting?
A,which b,whether c,that d,what 我知道是定语从句 但不缺少成分为什么选that?
A,which b,whether c,that d,what 我知道是定语从句 但不缺少成分为什么选that?
问题解答：
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