600. ---You haven’t said a word about my new coat, Brenda. Do you like it?

　 -----I’m sorry I ____anything about it sooner. I certainly think it’s pretty on you.

　　 A. wasn’t saying　 B. don’t say　 C. won’t say　 D. didn’t say　

599.I was really anxious about you. You _____home without a word.

　A. mustn’t leave　 B. shouldn’t have left　 C. couldn’t have left　 D. needn’t leave

598.I _____ping-pong quite well, but I haven’t had time to play since the new year.

A. will play　 B. have played　 C. played　 D. play

597. Selecting a mobile phone for personal use is no easy task because technology ____so rapidly.

A.　　 is changing　 B. has changed　 C. will have changed　 D. will change

596. Shirley_____ a book about China last year but I don't know whether she has finished it.

A. has written　 B. wrote　 C. had written　 D. was writing　　　　　

595.----Come on in, Peter. I want to show you something.

　　 -----Oh, how nice of you! I _____you ____to bring me a gift.

　　　 A. never think; are going　　　 B. never thought; were going　　

　　　 C. didn’t think; were going　　 D. hadn’t thought; were going　　　　

594. The police found that the house ______and a lot of things_____.

　　 A. has broken into; has been stolen　 C. had broken into; had been stolen

　　 C. has been broken into; stolen　　　 D. had been broken into; stolen　

593. ---Have you moved into the new house?

　　　 ---Not yet. The rooms_____.

　　 A. are being painted　 B. are painting　 C. are painted　 D. are being painted　

592. He’s upstairs ____letters.

　　 A. writes　　 B. is writing　　 C. write　 D. writing　　　　　

591. The last time I ______Jane she ____cotton in the fields.

　　 A. had seen; was picking　　　　 B. saw; picked　

　　　 C. had seen; picked　　　　　　 D. saw; was picking