By next Sunday they ____(work) here for two tears.答案为什么是will have worked?—Are you still busy?---Yes,I ___ the report for the manager and it won't take long.A am just finishing B had just finished 老师,我选的是B,可答案是A,为什么?

问题描述:

By next Sunday they ____(work) here for two tears.答案为什么是will have worked?
—Are you still busy?---Yes,I ___ the report for the manager and it won't take long.A am just finishing B had just finished 老师,我选的是B,可答案是A,为什么?