A. when ; that B. Until ; that C. until ; when D. when ; then
答案 1) A 2) B。
5. But was only the manager . (MET 91完型填空)
A. this B. that C. she D. it
〖答案与简析〗选D。测试 it 可以用作指示代词，指人。当 it 这样用时，所指的是心目中己知的或上下文中的人或事物，也可用来指婴儿。
6. — What was the party like ?
— Wonderful . It\'s years I enjoyed myself so much .
A. after B. before C. where D. since
〖答案与简析〗选D。测试it 用在某固定短语或句型中。如believe it or not (信不信由你）, take it easy (别着急，慢慢来）， it is (has been )…since…(某人干某事经过了多长一段时间），It seems that …(好象)，It happens that …(碰巧) ，It looks as if … （好象），It is one\'s turn to do …(该轮到谁干……) 等。又如：
Take it . Everything will be fine in a day or two .
A. easy B. quiet C. calm D. light
答案是A 。
7. It was Shanghai the Communist Party of China was founded .
A. where B. that C. at which D. that where
〖答案与简析〗选A。测试强调句与定语从句不能混淆，这里是定语从句。若把Shanghai 的前面加上介词 in 时，就是强调 地点，这时就可以选 B。
二、It 精练 40 题
1. Tom\'s mother kept telling him that he should work harder , but didn\'t help .
A. he B. which C. she D. it
2. I was disappointed with the film , I had expected to be much better .
A. that B. this C. one D. it
3. is a fact that English is being accepted as an international language .
A. There B. This C. That D. It
4. As happens , I have brought my umbrella with me .
A. it B. this C. that D. such
5. has already been pointed out , grammar is not a set of dead rules .
A. As B. It D. That D. This
6. It was seven forty-five he finished the work .
A. when B. that C. when D. before
7. I have no idea is so far the airport from here .
A. what B. how C. it D. that
8. Was it because it snowed last night he didn\'t come ?
A. why B. that C. when D. which
9. Does matter if he can\'t finish the job on time ?
A. this B. that C. he D. it
10. Is unnecessary to tell his father everything ?
A. that B. it C. he D. this
11. European football is played in 80 countries , making the most popular sport in the world .
A. which B. this C. that D. it
12. We are going to hold a meeting tomorrow afternoon . Please tell Mr Wang about .
A. this B. that C. it D. the meeting
13. — Who is knocking at the door ?
— is me .
A. It B. That C. This D. where
14. — What time is it now ?
— is ten o\'clock .
A. The time B. The o\'clock C. It D. That
15. I have seen the baby . is very active and lovely .
A. He B. She C. Who D. It
16. He was ill . is why he didn\'t come to the meeting .
A. It B. This C. That D. There
17. is good news that she has passed the entrance examination for Beijing University .