The reason for his success is ______ he worked very hard.
A. why B. that C. whether D. how
He couldn’t ______ the fact that the money was found in his house.
A. answer for B. leave for C. account for D. care for
—Who______ it be that is knocking at the door?
—It ______ be Father, but I’m not sure.
A. can; must B. can; may C. must; can D. may; must
—Why is Mr. Li so happy this morning?
—Because he was honoured with a(n)______ for excellence in teaching.
A. present B. gift C. award D. reward
—Daddy, can you buy me a new MP3 when you go to Beijing?
—You ______ get one if you are admitted to a key middle school.
A. could B. shall C. may D. can
The day ______ she spent with us was never to be forgotten.
A. when B. on which C. that D. in which
