The dancers were standing in a (circle) around the fire.
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I never miss a (chance) of playing football.
A. 时间
B. 机会
C. 名额
D. 午休
This boy is very (smart); he may be another Edison.
A. 愚蠢的
B. 可怜的
C. 勤奋的
D. 聪明的
it's normal to (exchange) business card at a party.
A. 10
B. 改变
C. 交换
D. 制作
May I (introduce) my friend Lily to you?
A. 10
B. 生产
C. 离开
D. 介绍