The shopping center wasn't _____ this morning as it usually is. A: more crowded B: more crowding C: as crowding D: as crowded

The train was very . A: crowd B: crowded C: crowding D: crowds

The word “congestion” (Para. E) here means A: over-crowding in traffic. B: energy consumption. C: safety problems. D: road accidents.

选词填空He found the street much _______. A: crowd B: crowding C: crowded D: crowdedly

It was a ______ day with people crowding her all the time. She was busy with their complaints. A: nervous B: restless C: impatient

Americans have a high tolerance of crowding while Asian people have a low one. A: 正确 B: 错误

The police warn people to take care of the old and the young in _________ places. A: crowd B: crowding C: crowded D: crown

When I got to the museum, I found it（）with people. A: crowded B: crowding C: have crowded D: had crowded

It was a ____ day with people crowding her all the time. She was busy with their complaints. A: restless B: nervous C: impatient D: good

I have warned you not to do that __________. A: over and over B: over and over again C: again and over D: again and again over