一般现在时怎么填be good at?

一般现在时怎么填be good at? be good at 怎么用? be good at算动词么?-----your brother good at------- in the river?填什么? 擅长踢足球用英语怎么说是be good at football 还是be good at play football be good at造句 用be good at be good at 造句 be good at 词性 be good at+什么? Be good at+__ be good at be good at this Tom is very good at telling s_____ 应该怎么填? Lucy is good at ___(sing).这个怎么填,为什么? he is good at ---(play) volleyball应该怎么填 Cats are good at catching_______.空格怎么填 be good at 和 be good with be good for,be good at,