People ____ more and more useful things to protect the earth since Earth Day was started.
A. did B. were doing
C. will do D. have done
My father decided _____ any more.
A. to smoke B. to not smoke
C. smoking D. not to smoke
Many Chinese children have to take piano lessons, but few of them have ____ in it.
A. duty B. courage
C. experience D. interest
---Peter is ill in hospital.
--I'm not ____ to hear that. I've been telling him not to work so late every day!
A. surprised B. sorry
C. glad D. excited
Linda didn't find ____ she liked and went home with empty hands finally.
A. something B. anything
C. nothing D. everything
Every time the train goes ____ the village, all the houses will shake.
A. across B. on C. through D. over
