1 . In order to attract more customers, many supermarkets sell their goods at a good_____.

A．discount

B．cost

C．profit

D．dictation

2 . The English teacher gives the class a __________ (听写)almost every day.

3 . My teachers got ________(生气的) that some students were noisy at the beginning of the ________(听写). (根据汉语提示单词拼写）