Don’t give up _____ you will never succeed.
A.and B.but C.while D.or
Trees can stop the sand _____ towards the rich farmland in the south.
A.moved B.to move
C.from moving D.moves
—Can’t you stop making so much noise? I really can’t _____ it.
—I’m terribly sorry for giving you so much trouble.
A.keep B.stand C.hear D.make
He said that he _____ to Canada a few years ago.
A.had been to B.have been to
C.went D.go
—We really shouldn’t use plastic bags any more when shopping.
—_____ It’s important to protect our environment.
A.So do I. B.With pleasure.
C.That’s OK. D.So it is.
Our country _____ progress in science and culture in recent years.
A.made such B.has made such
C.made so D.has made so
