--When will they return?--They'll come back____day.A.to foll

They'll have other meeting like this in the week（） A to foll when they come home,they will go to bed.这句话哪里错了? They will return the books to the school library( )a week. I don't konw when exactly they will come.P_,they will come t 改错 I don’t know when will they come when the firnen come they will ( )the fire quickly they will come to see me为什么不能是they will come see me呢? when will they make me a sand they walked until they come to(came to) a river I think they will come here soon,__?A:will they B:won't they when will they leave ? Where they come from,where should they return