单项选择题
Stewardess: Please put your seat up. We"ll be serving dinner shortly. Passenger: I"d like to, but there seems to be something wrong with it. ______
单项选择题 【B10】
单项选择题 Friend A: This meal is on me. Friend B: Thanks, ______ but isn"t it my turn to treat you
单项选择题 【B9】
