高中的英语有答案，要理由

1.In fact,we have developed a culture__A___people continually challenge themselves to improve upon their successes.

A.where B.when C.which D.that

2.The thing I like__D_____working here is that there's a great team spirit.

A.with B.over C.at D.about

3.It is said that radio,television and press are __C_____of conveying news as information.

A.the most three common means

B.the most common three means

C.the three most common means

D.three the most common means

这种的顺序究竟是怎样的呢

4.In my opinion,China should attract ___B___who can set up a world-class reseach group and generate world-class research in the next 10 years.

A.ones B.those C.that D.these

为什么A和D不能选？

5.The house could fall down soon if no one___C___some quick repair work.

A.has done B.is doing C.does D.had done

原本我认为这句话是虚拟语气，不过从答案看来貌似不是，不懂

6.It is almost five years___B___we saw each other last time.

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

为什么不选B呢？而且不是完成时才用since的吗

请帮我分析一下以上的题目，要详细些，万分感谢！

1. 要表达“in the culture people .......”

2. The thing that i like about working here 关于在这儿工作，我喜欢的一点 。。。。

3. 考查限定词的词序：以冠词为中位限定词，如：the, a, this, that, my, your, Tom's

可以用在冠词前的是前位限定词，如：what, such, rather

可以用在冠词后的是后位限定词，如：数词

模式为： 前位+中位+ 后拉+ 形容词+。。。+ 名词中心词

4. 前文没有出现可数名词复数形式，所以不能用ones。 These 也是替代上文所述的事物，所以不能用。

5.could 这里表示较小的可能性，不是虚拟

6. It is + 时间段 = It has been +时间段，故用since.