be good at+do 还是doing

be good at+do 还是doing be good at to do还是be good at doing还是be goodat do be good at 后面是接do还是doing be good at to do sth 还是 be good at doing sth be good at do well in 这两个后面是加do 还是 doing 问下各位,be good at 后面加doing 还是do be good at +do sth还是 doing sth 或是其他的 be good at doing sth.be good at=do well in 是不是 do well in do be a good time to do 还是doing be expert at doing 还是in doing 造句 be good at doing sth be good at doing sth 等于