—The light was on the whole night.
—I’m sorry. I forgot ________ the light last night.
A.to turn off B.turning off C.to turn on D.turning on
—Are you a teacher or a doctor?
—I’m ________ a teacher ________ a doctor. I’m a policeman.
A.not, only B.neither, nor C.so, that D.too, to
—Your CD player doesn’t work. You’d better ________.
—There’s no need. I’ll try to do it myself.
A.have it repaired B.have repaired it C.repair it D.not to repair it
—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