专题08 非谓语动词（练）（含解析）
I．单项填空
1. 【2015届浙江省温州市十校联合体（温州中学等）高三上学期期初联考】14. Experts warn that medical waste from hospitals, if properly, may contribute to spreading diseases.
A. not handled B. not being handled
C. not to be handled D. not having been handled
2. 【2015届浙江省绍兴一中高三上学期回头考试】31. They use computers to keep the traffic _________ smoothly.、
A. being run B. run C. to run D. running
3.【2015届浙江省绍兴一中高三上学期回头考试】30. I got to the office earlier that day,________ the 7:30 train from Paddington.
A. caught B. to have caught C. to catch D. having caught
