【正文】
1. Taking pictures___ very interesting. A. is B. are C. to be D. be the bad news made him cry. A. Hear B. Heard C. Hearing D. Is hearing a desert had always been a risk adventure. A. being crossed B. Having crossed C. Crossing D. To have crossed4. Before he came, I’d finished _______ the whole book. A. to read B. to have read C. reading D. read5. I always enjoy ____ to popular music at night.A. to listen B. listening C. that I can listen D. if I can listen6. We are considering ________ a trip around the island.A. take B. to take C. to be taking D. taking7. I hope you don’t mind ____ at your newspaper.A. I look B. my looking C. I looking D. my to look8. When a man’s heart stops ______ , he dies. A. to beatB. beatingC. beatD. beaten9. I can’t help _______ he is still alive. A. thinking B. think C. to think D. thought of10. So far as I am concerned, I prefer reading ________ .A. than meat B. for joy C.instead of sleeping D to drinking11. It goes without _______ that knowledge is important.A. talking B. telling C. saying D. mentioning12. We are looking forward ______ our friends next week.A. to see B. to seeing C. to be seeing D. shall see13. He spent a lot of money _____ books and magazines.A. buy B. buying C. to buy D. bought14. The silkworm is an insect worth _____.A. to know B. knowing C. to be known D. being known15. She went out without ______ goodbye to us.A. sayB. to sayC. sayingD. being said16. The curious student kept on _______ questions. A. asksB. asking C. to ask D. asked17. He is such a strange person。 there’s _____ what he’ll do next.A. no knowing B. not to know C. not known D. being unknown18. When she heard the bad news, she burst______.A. into crying B. out to tears C. crying D. out crying19. You must never cross the street without ______ the light to turn green.A. waiting B to wait C. waiting for D. to wait for20. Scientists succeed _____ protein out of old newspapers.A. to make B. at making C. making D. in making21. I became ______ after watching too much television.A. bored B. boring C. bore D. bores22. I felt ____ by his interest in my new invention.A. encourage B to encourage C. was encouraged D. encouraged23. He sat there ______ a novel.A. read B. reading C. reads D. had read24. Don’t w