三级B 2018.12This study has found some key factors _________ employees’ stress in their work.
A. turning down
B. leading to
C. taking off
D. carrying out
查看答案
三级B 2018.12The company can now focus its attention ________ developing its latest car model.
A. in
B. with
C. at
D. on
三级B 2018.12If Mary had ________ the situation to Tom, he would have understood it.
A. supplied
B. explained
C. charged
D. thrown
三级B 2018.12I’m pleased to receive your letter of April 10th,________ for our catalogue and price-list.
A. ask
B. asked
C. to ask
D. asking
三级B 2018.12__________ your trip is short or long, we can work out a schedule for you.
A. Whether
B. What
C. How
D. Which