4. Make sure the door is _________(关牢) before you go to bed.
3. The minister is in charge of foreign __________(事务).
2. The swimming pool won’t be open because it is under ___________(修理).
1. Keep away from their _________(争吵)
28. kept track of 29.As with 30.no accident
25.attempt 26.get stuck 27.after all;
21.trial and error 22.paste; glue 23.storage 24.Keep track of
18.previous 19.was aware of 20.was aware of; was aware that
15.otherwise; would have ections ects
11.partial 12.broke away from 13.possibility 14.otherwise