IF MARY ____, SHE WOULD NOT HAVE BEEN LATE FOR THE CLASS. A. CAU...

49. - DE THI THU DAI HOC MON ANH VA DAP AN
DE THI THU DAI HOC MON ANH VA DAP AN
49. If Mary ____, she would not have been late for the class. A. caught the bus. B. have caught the bus. C. would catch the bus. D. had caught the bus.