[听力原文]
M: I’d like to take these three chairs. Are they 10 dollars each
W: The two yellow ones are, but the red one is 5 dollars more.

How much will the chairs cost all together（）

A．Adjust the temperature of one's bedroom.
B．Take some sleepingpills before one goes to sleep.
C．Try to turn on the light and do some reading.
D．Not to get too worried about sleeplessness.

A．我正在饭店吃饭，哈里突然来到我的面前。
B．我正在饭店吃饭，正在这时哈里闯了进来。
C．我正在饭店吃饭时，哈里突然闯了进来。
D．当哈里突然出现时，我正在饭店吃饭呢。