—You ________ be quiet when you’re in the reading room, Jim. —OK, I ________.
A. can; will B. should; will C. may; shall
The city has improved a lot _________ I came here a few years ago.
A. sinceB. forC. when
The weather in summer here is cooler than ______ in Beijing.
A. this B. that C. it
In our class, about ______ of the students are girls.
A. three fifths B. third fifth C. third fifths
One-child policy has ______ controlling China’s population.
A. did well in B. worked well in. C. worked good in
Mrs. White isn’t here. She ______ London.
A. has been to B. has gone to C. went to