Mary had promised to give me a ticket for tomorrow. She failed, ____.
| A．either | B．though | C．but | D．too |
32. Premier Wen Jiabao has many important ______ of state to deal with.
| A．affairs | B．matter | C．business | D．Thing |
31. They had a desire that I______ their wedding.
| A．attending | B．attends | C．attended | D．attend |
30. They appeared ____ me, so I had to explain to them.
| A．misunderstanding | B．misunderstood |
| C．to be misunderstood | D．to have misunderstood |
29. The _____ of freshwater brought about a lot of difficulties for those living on the island.
| A．short | B．absence | C．lackness | D．existence |
28. The Chairman thought ______ necessary _____ Professor Smith to speak at the meeting.
| A．that; to invite | B．this ;inviting |
C．it; to invite | D．him; inviting |