He asked me to give him a lift ________ I could make an explanation about the crowded space in my car．It was so hard to refuse him!
A．untilB．whileC．beforeD．when
---________ has brought about the improvement of Chinese farmers’ living standards?
---The Party’s social benefiting policies, of course．
A．What is it thatB．What it is that
C．What is thatD．What is it
The 2013 population investigation shows one in four people in Jiangsu will be over 65 and the number of over-85 people ________ by 2030．
A．have doubledB．will be doubled
C．will have doubledD．will double
— Why didn’t you watch the program “Where are we going, Dad?”?
— It was because something was wrong with the web TV _______ too many users were receiving it．
A．whichB．that
C．through thatD．through which
So easy was the maths problem that it didn’t take much time for the students to _______ the correct answer．
A．make outB．bring out
C．figure outD．carry out
Most of her spare time ______ , she still kept on her research in the library．
A．occupiedB．to be occupied
C．was occupiedD．had been occupied
