79. Before there goes the bell for class, our math teacher took out a piece of and wrote his problems on the blackboard.
| A．brush pen | B．chalk | C．paper | D．Pencil |
The manager listened to the customers’ complaints attentively with great patience, _______ to miss any point.
| A．not trying | B．trying not | C．to try not | D．not to try |
Most students think they should have _______ at school if there were no examinations.
| A．the happiest time | B．a more happier time |
| C．much happiest time | D．a much happier time |
Teachers _______ be sensitive to the development level of each student so as to help them better.
| A．need to | B．may | C．are able to | D．can |
Three foreign films will be on this month. One is made in Korea, _______ two are made in England.
| A．rest | B．another | C．other | D．the other |
—No photos, please!
—______________.
| A．Don't mention it | B．I suppose not |
| C．Never mind | D．I'm terribly sorry |