______ on the light, Tony. It is too dark in the room.
A.Turning B.To turn
C.Don’t turn D.Turn
He kept writing the book _____ he was in great pain.
A.because B.if
C.unless D.even though
–Sam, could you please turn down the radio? Your sister _____ in her room.
--OK, Mum.
A. sleeps B.slept
C.is sleeping D.was sleeping
David’s dream is to go to the west of China and ______ an early childhood school there.
A. clean up B.look up
C.give up D.set up
—Don’t throw litter around. It _______ terrible in summer.
--Sorry, I won’t.
A. smells B.tastes
C.sounds D.feels
—Mum, must I stay there the whole day?
--No, you ______. You ______ come back after lunch, if you like.
A. mustn’t; can B.needn’t; must
C.needn’t; may D.can’t;must