Frankly speaking, I am not sure whether I ________ this in the old days with that kind of equipment, which looks quite odd and ridiculous.
A. should have done B. need have done C. would have done D. must have done
In my driving lesson, a traffic rule that impressed me most is that in no time ________ when the traffic lights turn red.
A. all vehicles should stop B. should all vehicles stop
C. should stop all vehicles D. should stop all vehicles
The laptops made by our company sell best, but nobody could have guessed the place in the market that they ________ 20 years ago.
A. had had B. had C. were having D. were to have
Peterson, a great archaeologist, said: “Archaeologists have been extremely patient because we were led to believe that the ministry was ________ this problem, but we feel that we can't wait any longer.”
A. looking out B. bringing out C. carrying out D. sorting out
When faced with a big challenge ________ potential failure seems to hide at every corner, maybe you've heard this advice before: “Be more confident.”
A. where B. whose C. which D. of which
Contrary to popular belief, the ants, hardworking ________ they are, have their time for play.
A. because B. while C. as D. where
