A wild Siberian tiger has been caught on camera in Heilongjiang Province, __________ the first images of this sort were captured．
A. which B． when C． where D． that
Words failed me when I heard the news of the New Year’s Eve stampede in Shanghai. But for lacking a sense of safety, so many people __________ killed or injured．
A. couldn’t be B. wouldn’t have been
C. mustn’t have been D. shouldn’t be
Our nation should first develop modern law __________ in ruling the country by law．
A. awareness B. opportunities
C. regulation D. principle
__________ on Wechat is a common phenomenon, and more people hardly write letters．
A. Communicate B. Communicated
C. To communicate D. Communicating
People are __________ shoppers in China on November 11th, contributing to more than 35 billion online shopping sales．
A. potential B. enthusiastic
C. intelligent D. temporary
— Didn’t you talk any with Rice?
—No, the plane __________ off when I rushed to the airport to see her off．
A. was taking B. had taken
C. took D. has taken
