单选题 When I found the light switch, the unshaded bulb only illuminated two small cats, sitting on the table ______ round the inside of the empty ham tin.
A. swallowing B. gorging C. licking D. digesting

【正确答案】 C
【答案解析】swallow吞，咽；gorge狼吞虎咽，塞饱；lick舔；digest消化。