问题详情

By the time you arrive, I ______ working for two hours


A、will be

B、can

C、will have been

D、have been

时间:2021-12-31 23:03 关键词:

答案解析

C
     9.此题考查的是时态,将来完成进行时。一直做到将来的这段时间,而且该动作可能还要继续。选项C是正确的。