问题补充:
I banning trucks in the city centre because it will reduce air pollution and noise.
A. assist
B. advocate
C. admit
D. oppose
答案:
A. assist
(答案→)B. advocate
C. admit
D. oppose
解析:句意:我支持禁止汽车在市中心通行这一主张,因为这样会减少空气污染和噪音。assist 帮助;协助,后接介词with/in;advocate拥护;支持,后可以接动词ing形式;admit 承认,后接动词ing形式;oppose反对,后接名词或代词,但be opposed to 后接 doing。根据题意,只有B项正确。