—Listen ! Helen is singing in the next room.—It _______ be Helen. She has gone to Beijing.
A.can’t B.mustn’t C.may D.should
Nobody knows when the stone bridge________ , because there is no record about it.
A.has built B.was built C.built D.will be built
—Mary has improved her Chinese a lot since she joined the Chinese club.
—How ________ she chose to join it!
A.quickly B.suddenly C.simply D.wisely
—Are you sure this bat belongs to you?
—Let me see. Oh, sorry. I took it ________.
A.by hand B.by mistake C.by the way D.by air
—Did my grandparents ________ me when you went to visit them?
—Yes, of course. They said they missed you very much.
A.pride B.remain C.cheat D.mention
—Will you fix up the machine according to the , David?
—No problem.
A.instructions B.inventions
C.invitations D.interviews
