When did the man start using the computer?
A. At 2:30. B. At 4:00. C. At 4:30.
（题文）How does the man feel now?
A. Sad. B. Excited. C. Worried.
What time is it now?
A. 5:45. B. 5:30. C. 5:15.
Where does the conversation probably take place?
A. In a store. B. In a hotel. C. In a restaurant.
（题文）In the last few years, China ___ great achievements in environmental protection.
A. has made B. had made
C. was making D. is making
（题文）Silk ______ one of the primary goods traded along the Silk Road by about 100 BC.
A. had become B. was becoming
C. has become D. is becoming
