While Helen _____ along the river after supper, she ____ a wallet lying on the roadside.
A. was walking; was finding B. walked; found
B. walked; was finding D. was walking; found
I stopped the car ____ a short break as I was feeling tired.
A. takeB. taking C. taken D. to take
______ the students were when they heard the rock music!
A. How excited B. How exciting
C. What excited D. What exciting
______ you keep trying till the end, you will never know how strong you are!
A. Although B. If
C. Unless D. Because
---Look! The light is still on. Is Mr Wu working in his office？
---No, it _____ be Mr Wu. He has gone to Nanjing for a meeting.
A. needn’t B. mustn’t
C. can’t D. wouldn’t
The fire lasted half an hour before it was ______ by the firemen.
A. put out B. blown out
C. taken out D. cut out
