The teacher is good at ___(sing).She ___(sing)a song just no

The teacher is good at ___(sing).She ___(sing)a song just no when is a good time ___ the song? A.sing B.to sing C.singing My sister is good at ___(sing),but she isn't good at ___(dan Lucy is good at ___(sing).这个怎么填,为什么? the _____(sing) _______(sing) a beautiful song just now. Can you ___(sing)the song "litter Star"?NO ,I can't.怎么填,为什么? -do you know ___ PSY will sing the song Gangnam Style at the sing the song ___-the piano on with at to选哪个?答案为什么是 to 改错 she is good at sing She is a good( )(sing) she ( )(sing) ( )(好) . Listen, the song ___(sing) is very popular with the studen 按要求改写句子!1.she is going to sing a song at the party(改为一般疑问句）_