—— Where did Mary’s parents buy the beautiful vase?
—— It was in the same village _______ they spent their holidays last year.
A. that B. when C. as D. where
——Is there any possible way to help them get rid of such a bad habit?
——To tell the truth, it’s very hard. But we_______ on this problem.
A. worked B. had worked C. are working D. had been working
Help others whenever you can _______ you will earn respect from others without difficulty.
A. and B. or C. unless D. but
The Internet celebrated its birthday on September 2nd, by which time 40 years _______ since the first successful transfer of data between two computers.
A. has passed B. had passed C. passed D. have passed
—— I haven’t seen Johnson these days.
—— I think she _______ a conference in Beijing, but I’m not sure.
A. should be attending B. might be attending
C. could have attended D. must have attended
The use of Chinese by teachers in ______ English classroom must be restricted because it will decrease _______ time when students are exposed to the English language.
A. the; / B. an; / C. /; the D. an; the
