地下城堡2乌鸦具体位置:We must ask a doctor to come.

We must ask a doctor to come. 请医生能说ask a doctor 吗 So we must obey ......... _father is a doctor We must have the pipe fixed immediately.It ____(leak)for a whole week. 20. we must try our best to stop the pollution____ a happy life. In order to succeed,we must agree _____ a plan of action we must buy things we ( )A. need not B.do not need C.have not need解释一下，谢谢 ask a question Ask a English question