22．The city of Rome has just passed a new law to prevent cruelty to animals，which many people say can___the civilization of a city．

23. It's reported that at least one Chinese vessel________in the hands of attackers in Somalia so far.

25. Thirty years ago this month，China's leaders launched an economic revolution.___________the door to free market reforms and foreign trade．

26．There are all sorts of ways that employees can be successful_________obtaining the better office environment.

27．To shut your eyes to facts．as many of you do,_______foolish．

28. —Has your sister finished her novel yet?

—I have no idea．She________it last week.

30.  According to the report，China's graduates will find it tougher than ever to get jobs in the coming year, as China’s economy_________and unemployment rises．

32. 一William has asked me to lend him five pounds．Should I do him the favor and lend it to him?

—Certainly，otherwise he________to borrow it from me．

33．It was not until one night_____we were doing our cleaning-up           I got curious and wanted to see what was on the top floor．

34．Hardly_________the phone           I was told that the hotel had been booked full．