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.
【正确答案】
C
【答案解析】[解析] 本题中，C项“licking舔”符合题意。如：The cat cleaned itself by licking its hair．(猫舔身上的毛使自己干净。)其他三项“swallowing 吞，咽；gorging狼吞虎咽，塞饱；digesting消化”都不正确。