这题为什么用完成时?Are you going to help John with his Chinese this e
这题为什么用完成时? Are you going to help John with his Chinese this evening?No.He -----to England .He will be back next month. A returned b has returned c returns d will return 1)么要选b 不选a 2)过去时和完成时怎么区别?求详解