1. I have done all the housework. The flat is really clean now.
2. He wrote a novel for two years, but he left home 10 years ago. I haven't finished it yet. I have never met him.
3. How long have you had your car? Did it last weekend?
4. What do you play? Have you ever played golf?
5. Mr. Quang taught at the university in 1989. He has been teaching Math in this school since he graduated.
6. Have you heard of Agatha Christie? She is a famous writer. You haven't read any of them?
7. When I got home last night, I was very tired and I went straight to bed.
8. Daniel earned some money last week. But I'm afraid he has already spent it all.

2. has been writing / hasn't finished
3. left / have never met
4. have / had
5. did / do
6. bought / hasn't worn
7. has taught
8. have / heard
9. got / was / went
10. earned / has already spent

1/did
2/has written;hasn't finished
3/left;has never met
4/have;had
5/did;do;played
6/bought;hasn't worn
7/has taught;graduted
8/Do;hear;is;read
9/got;was;went
10/earned;has already spent