Questions 19 to 21 are based on the conversation you have just heard.

A．She thinks a hairdryer is suitable.
B．She wants to know what’s making all the noise.
C．She isn’t sure how practical the man’s gift is.
D．She can’t hear anything when the hairdryer is on.

A．They believe that criticism is beneficial for their early development.
B．They don’t realize that criticism may destroy their self confidence.
C．They want to make them remember life’s lessons.
D．They want to put more pressure on them.