It is only ___our power to carry out ( 执行) the rules, rather than make them. A. within B. on C without D. off
31. They had a desire that I______ their wedding.
30. They appeared ____ me, so I had to explain to them.
29. The _____ of freshwater brought about a lot of difficulties for those living on the island.
28. The Chairman thought ______ necessary _____ Professor Smith to speak at the meeting.
27. The problem he put forward at the meeting was _____. Which one of the following is “WRONG?”