1.All of us wonder ____ cleaned the classroom.

2.The fact ____ he didn’t keep his promise made me very angry.

3. ____ he is right is certain.

4.The truth is _____ he has come back.

5.He asked _____ was the matter.

6.I don’t know _____ or not the professor will give us a lecture.

7. _____ they went there that evening is not clear

8. _____ should be done has been done.

2. Fill in the blanks with relatives:

1) He still lives in the house ______window faces to the south.

2) He still lives in the house ______the window faces to the south.

3) He still lives in the house and ________ window faces to the north.

4) He still lives in the house ____________is in the north of the city.

5) He still lives in the house ______he was born.

6) Is this house _________ he visited last year?

7) Is this house ________ he was born?

8) Is it in this house ______ he was born?

Find the mistakes and correct:

1.Einstein is such a great scientist that we must learn from.

2.This is the very place where we visited many years ago.

3. There are ten students are playing basketball on the playground.

4. Hangzhou, where we spent last spring there, is one of the most beautiful cities in China.

5.He is just the man whom I often turn for help.

6. She is the only one of the girls in our class who have been to the United States.

1.These houses are sold at such a low price ____ people expected.

A. like

B. as

C. that

D. which

2. ____ is reported in the newspapers, talks between the two countries are making progress.

A. It

B. As

C. That

D. What

3. Helen was much kinder to her youngest son than to the others, ____ , of course , made the others envy him.

A. who

B. that

C. what

D. which

4. ____ is often the case, we have worked out the production plan.

A. Which

B. When

C. What

D. As

5. The factory produces half a million pairs of shoes every year, 80% _____ are sold abroad.

A. of which

B. which of

C. of them

D. of that

6.The gentleman____ you told me yesterday proved to be a thief.

A. who

B. about whom

C. whom

D. with whom

7.Recently I bought an ancient Chinese vase, ____ was very reasonable.

A. which price

B. the price of which

C. its price

D. the price of whose

8.The journey around the world took the old sailor nine months, ___the sailing time was 226 days.

A. of which

B. during which

C. from which

D. for which

9.American women usually identify their best friend as someone ___ they can talk frequently.

A. who

B. as

C. about which

D. with whom