22.---Here's a new pair of shoes for you.

22.---Here's a new pair of shoes for you.
---Thank you,but there's no need _______a new pair for me.
A.to have bought
B.to buy
C.buying
D.to be buying
【A】因为已经买了,所以就是本来没有必要的,用need to have bought
23.To do a bit for the motherland,__________
A.working hard is necessary
B.to learn a foreign language is needed
C.it is important to master science
D.one should serve the people whole-heartedly
【D】to do 的逻辑主语应该是‘人’,那么句子的主语也应该是‘人’,即one,这叫主状的主语要一致.只有D正确.
24.Everything ________into consideration,they ought to have another chance.
A.to take
B.taken
C.to be taken
D.taking
【B】Everything ________into consideration,应该是独立主格结构.根据关系,Everything是‘被’考虑在内的,所以,用过去分词表被动.

c 主动，用现在分词
A 还是表主动
B 被动，用过去分词

1.b
2.d
3.b
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B A B

B
D
B