President Xi warned that officers ________ failed to honestly report would be punished.
A.which B.what C.who D./
—Which film do you like best?
— ________ of them. They are all long and boring.
A.Neither B.All C.Either D.None
—Did you see anyone walk by just now?
—No, I ______ a movie.
A.have watched B.was watching C.watched D.am watching
I'm sure you can catch up with others _______ you work hard.
A.until B.if C.unless D.though
—Excuse me, Madam, ________ I keep the book for a week?
—Sorry, books can't be taken out of the reading room.
A.must B.need C.may D.ought
The examination is coming. What else should we pay attention to ________our grades?
A.to improve B.improving C.improve D.improved
