If Joe knew anything about car mechanics, I’m sure he would help us fix the car, but he ________ even less than we do.

     A. had known          B. would know          C. knew                D. knows

 A survey has shown that 40% of those killed in traffic accidents _________ if they had been wearing seat belts.

A. should have been saved                                  B. must have been saved             

C. need have been saved                                     D. could have been saved

      I don’t remember how many years ago ________ State Street began its business in China.

     A. it was when           B. it was that            C. was it when         D. was it that

These years, more students have gone abroad to study, but some of them seem unable to ________, so they have to quit.  

      A. stick out              B. hang out               C. fit in　              D. participate in

      It was believed that a bomb had been ________ in the office building and all the workers there were asked to leave at once.

     A. burst                         B. planted                     C. submitted              D. distributed

---The scenery here is so fantastic!

      ---My friend ______ me a right place. It is a popular tourist destination.

      A. introduces                 B. introduced                C. had introduced          D. was introducing

After months of regular exercise in swimming, Mary was able to cover __________ seemed to be impossible to reach.

     A. what                        B. which                      C. that                          D. it

With the successful launch of Tiangong-1, which was ________ breakthrough in this field, China’s space dream took a step closer to ________ reality.

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

---Why don’t you stay here for another two weeks? You are so popular here.

   ---Well, ________.

   A. I don’t want to outstay my welcome             B. I guess I can get away with that

   C. I’d better make myself at home                 D. one man’s meat is another man’s poison

上周二晚上十点半，张方和李华发生了争吵（张方打手电筒学习，李华认为影响睡觉…），就此，我们不难发现现在同学之间就小矛盾发生争吵的现象普遍存在。请你用英语写一篇100—120的文章。文中包括以下要点：

1.       简单描述存在的现象；

2.       分析问题产生的原因；

3.       提出建议。

参考词汇：手电筒 flashlight

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