21. Stephen Hawking died on March 14, 2018 which sparked both worldwide mourning and a _______ of his life’s achievements.
A. conservation B. reservation C. preservation D. celebration
22. It is almost five years since Jimmy taught high school students and he _____ as an interpreter in a foreign enterprise.
A. served B. had served C. is serving D. would serve
23. When asked whether the information on the Internet is true or false,____they were not sure.
A. half of whom said B. half of them saying
C. half of them said D. half of whom saying
24. Challenges and hardships have _______ the best quality of the young generation．
A. brought in B. brought out
C. brought up D. brought about
25. Li Zhi, a Chinese pop singer, finally got to know _______ a real forbidden performance tastes like when he was accused of misbehavior.
A. when B. how C. what D. where
26. Any reform of the government should be ___________ the popular mood and times.
A. in tune with B. in preference to C. in light of D. in terms of
27. —Did Jay Chou sing at the opening ceremony?
—Of course. His coming ______the happiness of the audience.
A. contributed to B. added to C. led to D. appealed to
28. ---Excuse me, but I want to use your computer to type a report.
--- You _______ have my computer unless you take good care of it.
A. needn’t B. mustn’t C. shouldn’t D. shan’t
