题目内容
15. in three days' time
15. 在三天时间里
( ) 10. ―When the boy his right arm?
―Two days ago.
A. has;broken B. is;broken
C. did;break D. was;broken
1. We must keep the classroom (clean) .
3. 担心做某事
10. clean up
4. We are told (not play) football on the street.
( ) 3. I'm afraid I can't go with you, . You may call Tom.
A. too B. also C. either D. neither
4. On my way home,I found a purse (lie) on the ground.
( ) 5,We should think about how_______ better next time.
A. do B. to do C. can we do D. can do
