1 . Lily said that it was because of her strong interest in medicine _____ she chose the course.

A．how	B．what
C．that	D．why

2 . 单句改错
增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1. 每句仅有一处错误；
2. 每处错误及其修改均仅限一词。
1. She can be real stubborn.
2. I wonder if it’s because I haven’t been outdoors for so long I’ve grown crazy about nature.
3. I happened to upstairs at dusk when the window was open.
4. Your friend, who doesn’t work hard, who asks you to help him cheat in the exam.
5. While walk the dog, you were careless and it got loose.
6. English now spoken as a foreign or second language in South Asia.
7. With your partner, list the countries that use English as a official language.
8. It were my sisters who first had the idea to cycle along the entire Mekong River.
9. I don’t want to set down a series of fact in a diary as most people do.
10. There was almost no wind—only the flames of our fire on company.

3 . --Was it at 11 o'clock ________ your father came back last night?
--Yes, he is always coming back so late.

A．while

B．when

C．that

D．until

4 . Mr. Smith didn’t understand _____ made his son so upset that evening.

A．what was it

B．why it was this

C．how that was

D．what it was that