苍老的心 4星
共回答了486个问题采纳率:91.8% 评论
正确答案是:be good at playing the piano!具体解析如下:be good at sth. 擅长某事,be good at doing sth. 擅长做某事。标题句提问意思是:“擅长弹钢琴”,因此要用短语:be good at doing sth.
另外:还要注意,表示“弹琴”,play后要加定冠词“the”;而表示“打球”,play后不用加定冠词“the”!例句:
I like to play soccer.
I like to play the piano.
He is good at playing soccer.
We're good at playing the violin.
9小时前
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