— So, can you tell me __________ here at noon?
— Well, a car hit a bike while I was walking down Center Street.
A. what did you see B. what you saw
C. when did you see it D. when you saw
— I can’t decide __________or not I should encourage my son to be a volunteer.
— Why not? It will make him more helpful.
A. if B. whether
C. how D. why
— Grandpa has changed a lot.
— So he has. He used to _________ games with the children.
A. play B. playing
C. played D. plays
—________do you prepare for an exam?
— By going over all my notes.
A. How B. Why C. When D. Where
—What’s wrong with you?
—I wasn’t careful enough and _______an old man while walking along the street.
A.knocked off B. knocked up
C. knocked into D. knocked out
—Shall we drink the tea now?
—No, the tea should be ______in the water for some time before you drink it.
A.stayed B. staying
C. kept D. keeping
