In his lecture, the professor referred to the belief, in contrast to all other countries, ______ the elderly are wise, ______ is particularly dominant （占优势的） in the Chinese culture．
A. that; that B. that; one that C. which; which D. that; one
--- I saw your uncle take a taxi to the airport. Why didn’t you drive him there?
--- I ______. But my car ______.
A. would; was fixed B. would have; was fixed
C. would have; was being fixed D. did; was being fixed
I will be surprised if you can get Calvin, who is very mean, ______ these donation draw tickets from you．
A. buy B. buying C. buys D. to buy
As is known to all language learners, newly learnt words will soon be forgotten unless ______ used in everyday communication.
A. exactly B. finally C. gradually D. frequently
Many students listened to the lecture, but I wondered how much they ______.
A. took out B. took up C. took off D. took in
I think that something has to be done to stop the air from being polluted, ______ ?
A. doesn't it B. don’t I C. don't they D. haven't they
