we should keep trying,and i think our efforts will finally --答案是用pay off但是想问一下pay for行不行 两个词的区别呢

Should we dietto keep fit We should keep our classroom _______(clean). We should keep children ______ .(safe) We should keep inthe reading room We should keep the nice room clean should we keep pets in dormitory We should do exercise to keep h___. we should keep quiet here 同义句 we should keep ____ here What should we do ____________(keep) our classroom clean 初三英语作文Whether We Should Keep Animals in Zoos We should keep our room clean 改被动语态 what should we do to keep water clean 英语作文should we keep pet?(要两百字左右) We Should Keep A Pet英语作文80词 英语作文 -why should we keep away from smoking? We should keep children from accident(改为同义句) We should do some exercise to keep fit疑问句 We should try to keep the（平衡）of nature