Liu Xiang trained so hard ______ he hurt his foot.
A．when B．while C．that D. What
– Will teachers _____ by computers in the future, Tony?
–Maybe yes, maybe no. But I’m sure we’ll learn from both of them.
A. have replaced B. are replacing
C. are replaced D. be replaced
The story of this book______ how young people love each other.
A．tell B．tells C. telling D．told
Your computer will go wrong if you _____ games too often on it.
A．play B．plays C．playing D．will play
I think man-made wonders are ____________ than natural ones.
A．exciting B．more exciting
C．most exciting D．the most exciting
– Dad, _____ I borrow your camera?
– Sure. But why?
A．can B. must C．should D．Need
