1.We've decided to hold a football match next week.Will you__?
A.take part in B.attend us C.join D.play a part
2.That boy was praised at the meeting because he was thought__a good example to all of his schoolmates.
A.to set B.to be setting C.to have set D.setting
3.__fresh air,people may start to feel sick.So make sure you open the windows while working.
A.For the absence of B.In the absence of
C.In the honour of D.In the short of
4.In those days,whether I had difficulties,I__Mr. Shen for help.
A.used to go to B.was used to go to
C.would go to D.used to going to
5.-"Could we put off the meeting?"she asked.
-"__."He answered politely,"This is the only day everyone is available."
A.Not likely B.Not exactly C.Not nearly D.Not really.

与上面的回答有点不同见解,也来说一下.
1.C 2.C 3.B 4.A 5.A

1.We've decided to hold a football match next week.Will you__?
A.take part in B.attend us C.join D.play a part
解释:join有不及物动词的词性. 我们打算下周举办个足球赛.你要参加吗?
2.That boy was praised at the meeting because he was thought__a good example to all of his schoolmates.
A.to set B.to be setting C.to have set D.setting
解释: be thought to have done(被)认为做过什么
那个男孩子在会上受到表扬,因为他被认为给他的同学们作出了榜样.
3.__fresh air,people may start to feel sick.So make sure you open the windows while working.
A.For the absence of B.In the absence of
C.In the honour of D.In the short of
解释: in the absence of有"缺少"的意思. 缺少新鲜空气,人就会感觉不舒服.所以,工作时要把窗打开.
4.In those days,whether I had difficulties,I__Mr. Shen for help.
A.used to go to B.was used to go to
C.would go to D.used to going to
解释: used to do意思是"过去常常做某事"; be used to do意思是"被用来做某事"; would do是"会做"; used to doing没有这样说的,可以说be used to doing是"习惯于做某事"
这题可以把插入部分 whether I had difficulties 去掉再看:
In those days, I used to go to Mr. Shen for help.
在那些天里(那段日子里),无论有没有困难,我常常都去找沈先生帮忙.
5.-"Could we put off the meeting?"she asked.
-"__."He answered politely,"This is the only day everyone is available."
A.Not likely B.Not exactly C.Not nearly D.Not really.
解释: not likely:不大可能; not exactly:未必就; not nearly:远不及,完全不; not really:事实上不是.

这里面说,

----我们能不能将会议推迟?
----不大可能,今天是唯一的一天大家都有空.

还要注意,这里面有一个politely,客气地回绝.

对于这最后一个,我不知道确切的答案该选哪一个,因为这里面说到了"客气地",而我不知道实际上哪一个是比较客气的.


有点期待你的答案了,呵呵