but my friends and i think it must be teenagers having fun为什
but my friends and i think it must be teenagers having fun为什
I think it must be teenagers having fun.这句话的句子结构是怎样的
It must be teenagers having fun 为什么这里要用having而不用to have
it must be teenagers ------------fun.A have B having C had D
That must be teenagers having fun noise 语法错误吗
It must be teenages having fun 这里为什么要用having 而不用to have
I think it must be的意思
My friends and I have fun singing our f___songs.
But I think to be friends is the best choice
but i think we can be the best friends
I think my winter holiday will be very fun
I can't find my watch,but it must be ()in ...