题目内容

8. ―         (sec) my pen? I can't find it.

一I saw it on the desk just now.

8. Have you seen答语中用了一般过去时表示刚才发生的事情，与现在无关，但问话者想知道的是对方是否知道钢笔在哪儿，与现在有关，因此用现在完成时。

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9. ―A study shows cigarette smokers have lower IQs than non-smokers.        (absolute) . That's why I am much smarter than you.

2. It was said that it would be at least three more months      he could recover and return To work.

3. When you      (live) here for many years,you will find you can't leave here.

13. He      ( work) on the farm since two years ago.

4. ―You have made great progress in your study of English? haven't you? 一Yes,but much      ( remain;do) .

9. The place at which the bridge is supposed     (build) should be where the cross-river traffic is the heaviest.

1. John knows the city well. He has gone to the city before.       
2. M      work is work in which you use your hands or your physical strength rather than your mind.

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