491. They talk instead of ____- homework.

A. do　　 B. did　　　 C. to do　　 D. doing

490. He should have his hair____.

A. cutting　 B. cut　　 C. to cut　 D. cutted

489. It’s not right. You should stop ____ that silly earing.

A. to wear　　　 B. to put on　　 C. putting on　　 D. wearing

488. He needs to spend time ___- games with friends.

A. to play　 B. playing　　 C. played　　 D. play

492. Start early ____ you’ll be late for school.

A. or　　 B. but　　 C. so　　 D. however

491. She thought I was talking about her daughter, ____ , in fact, I was talking about my daughter.

A. whom　 B. where　　 C. which　　 D. while

490. Would you like a cup of coffee ____ shall we get down to business right away?

A. and　 B. then　　 C. or　　 D. otherwise

489. Be careful when you stand on the wooden bridge, ____, you will fall into the river.

A. Otherwise　　 B. Therefore　　 C. But　　 D. And

489. He is over forty, ____ he insists on learning another foreign language.

A. and　　 B. so　　 C. or　　 D. still

488. There are some jobs that men can do well ___there are also some jobs that men can not do well.

A. while　 B. because　 C. or　　 D. so