Trees are important to us，so we have to ________ the forest.
A. clean B. describe C. leave D. save
Eddie is very lazy and he ________ exercises.
A. sometimes B. never C. often D. always
—Why didn't you buy that watch?
—It was too ________.I didn't have so much money.
A. cheap B. special C. different D. expensive
Mary is smart.She always has some good ________.
A. gifts B. wishes C. ideas D. messages
That place is far from here.It's best to go there ________ bus.
A. to B. by C. of D. on
—Do you want to be ________ artist，Jane?
—No，I would like to be ________ singer.
A. a；a B. an；an C. an；a D. a；an
