I hope they ______ this road by the time we come back next summer.A.have repairedB.will re
I hope they ______ this road by the time we come back next summer.
A.have repaired
B.will repair
C.are to repair
D.will have repaired
D
解析:此句中的“by”表示“在……以前”,句中又出现“next summer”表示将来,因此需用将来完成时。“will have done sth.”表示在未来某时间之前已经完成某事。