高三测试外语单选题，请师哥师姐帮助解决~~答案给出 请解释原因（有点多，不过给出准确答案的再加分）

23. ---We had __D____ really cold March this year.

---I can’t remember _____ spring when it snowed in Jiangxi.

A a, /. B / , the. C the, a. D a , a

24. --- Why not take my car to the museum instead of walking?

---No, thanks . ___A_______.

A I’m used to B . I’ m able to. C I’ m about to . D I’ve got to

29．一We have been in the traffic for an hour by now．

一Yeah．I’m afraid We’ll never___D_______. it to the conference．

A．get B．have C．do D．make

30．--- Shall I come to pick you up right now?

--- Sorry. I’m too busy to ___B_______. for the moment.

A．get through B．get away C．get off D．get together （顺便解释下各个词组的意思）

31 I hurried to answer the telephone and it was Mabel, who had been one of my best friends __D___ we were at primary school.

A. while B. when C. after D. since

34. —can I help you ?

—I ‘d like to buy a present for my mother’s birthday,__B___ at the proper price but of great value.

A that. B one. C everything. D anyone

23的第一句是想说明今年的3月很冷，有一个寒冷的三月，故用a，第二句意思是我印象中江西没有春天下过雪，所以用a代表任一个，如果用the，则为特指，在这里语句就不通了。

24 i am used to表示我已经养成习惯了，这是我的习惯，此句中意为不了谢谢，我习惯走去museum，i am able to表示我有这个能力，上下文不通，i am about to的意思是我正准备，跟no thanks矛盾了， i have got to的意思是我必须怎么怎么，上下文不通，故选A

29 上文意思是说我们被交通堵住了，下文是想说我觉得我们赶不上会议，故排除B C，如果要用get则直接说never get to the conference，用never make it to the conference则表达出交通堵塞让我们赶不上会议的意思

30 get through是完成，达成的意思，get away是离开的意思，get off是动身，出发的意思，get together是相聚，下文是说太忙了现在不能离开，故排除A D，并且说现在太忙了不能离开自己手头的，所以用GET AWAY

31 since表达的意思是，从我们小学开始就是我最好的朋友，while何when只是说当我们在小学的时候，after是小学之后，但是前文的意思是一直是最好的朋友，所以用since

34 句子意思是，我想给我妈妈的生日买一个礼物，一个价格适中但是很有意义的礼物，这里C D很明显不适合，如果用THAT则还需要跟IS，并且这里后面的礼物是形容给妈妈生日礼物的，可用which is，one这里和which is 的意思一样，代表的是a present for my mother's birthday，所以选B