I'm not good ____是to speak 还是at speaking还是at speak

I'm not good ____是to speak 还是at speaking还是at speak
Chinese is easy to learn.I'm not good ____
A to speak B to speakingC at speakingD at speak
英语人气:570 ℃时间:2019-09-17 16:56:25
优质解答
at speaking
be good at 表示“擅于”,at是介词,后接名词、代词或者动词的ing形式,所以这里用speaking.
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