—Mr.Smithisasbusyasabee.—Ifheisnotworkinginhisoffice,h...

問題詳情：

 —Mr. Smith is as busy as a bee.

—If he is not working in his office, he _________ to his office.

  A. will drive                     B. has driven                 C. is driving                  D. drives

【回答】

C

知識點：動詞時態

題型：選擇題