Sam _____ some knowledge of the computer just by watching others working on it.
A.brought up B. looked up C. picked up D. set up
A new iPad in the market costs about ______ of a second-hand one.
A. three times of the price B. three times as much as the price
C. three times the price D. three times more than the price
By the time we arrived at the railway station, the train _________. As a result, we missed the train.
A. left B. is leaving C. had left D. leaves
The small mountain village we spent our holiday last month lies in is now part of Hubei.
A. which; where B. where; what C. that; which D. when; which
________ our surprise, when the audience saw this film, they all shouted ______ surprise.
A.In ; in B.In ; at C.To ; in D.To ; at
Our school was going to send a teacher to Xinjiang . I was the first person _______ to go.
A. volunteer B. to volunteer C. volunteered D.volunteering
