1 . ______ the picture of the popular singer, I would show it to you right now.

A．I had taken

B．Did I take

C．Had I taken

D．I took

2 . The millions of calculations involved, had they been done by hand, ______________（lose）all practical value by the time they were finished. (用适当的词填空)

3 . 若没有他们对我们的帮助，我们的实验就失败了。
________ ________ ________ ________us, our experiment would have failed.

4 . 要不是因为船长的努力，我们就会连船带人都沉没了。（汉译英）

5 . 如果我们过去做了很大努力的话，我们可能就获得成功了。（汉译英）

6 . Linda couldn’t have answered the question so easily if she ________ a few books on world history before hand.

A．hadn’t read

B．hasn’t read

C．wouldn’t have read

D．didn’t read

7 . 单句改错
1. I would come sooner but I didn’t know that they were waiting for me.
2. There is so much noise upstairs—a party is held by some young people.
3. More than $10 million had spent carrying out the project by the end of last year.
4. They made up their mind that they will buy a new house once Larry changed jobs.
5. A special committee of scientists will established to study AI’s effects on economy in the years ahead.
6. Had I known about that useful computer program, I will have saved a huge amount of time and energy.
7. The old couple have married for more man 40 years and never once have they quarreled with each other.
8. A communicative satellite weighs as much as 3.5 tons was sent up into space last week.
9. Shakespeare’s play Hamlet has made into at least ten different films over the past years.
10. The number of deaths from heart disease will be reduced greatly if people persuaded to eat more fruit and vegetables.

8 . 今天上午我本该给老板打电话，但是我忘了。
I__________ my boss this morning, but I forgot.

9 . But for the warning of the passing car, he ________(meet) with an accident.

10 . 如果他没有熬夜，他的健康就不会如此容易垮掉。
If he hadn’t stayed up, __________ __________ __________so easily.