That must be teenagers having fun noise 语法错误吗
That must be teenagers having fun noise 语法错误吗
It must be teenagers having fun 为什么这里要用having而不用to have
but my friends and i think it must be teenagers having fun为什
it must be teenagers ------------fun.A have B having C had D
I think it must be teenagers having fun.这句话的句子结构是怎样的
that must would be nice有语法错误吗,
It must be teenages having fun 这里为什么要用having 而不用to have
that must be a lot 为什么用more fun
_____(确实是) that time flies when you are having fun.(must)
big noise有语法错误吗
I think she must be over forty.有语法错误吗
That must be a lot fun___________a bus .添having 为什么是动名词?