Below is a chart showing the number of students wearing glasses within a class of 50 students in a junior high school. Look at the chart and write an essay of about 120 words making reference to the following points:
1） tendency of short-sightedness among the students；
2） possible reasons and solutions to the problem.

A. Go on a coffee-farm driving tour.
B. Visit female-owned coffee farms.
C. See several different coffee houses.
D. Explore the living history of coffee.

A. 2.
B. 7.
C. 9.
D. 12.

A. It should be sold in cans.
B. It should be drunk slowly.
C. It should be long stored for better taste.
D. It should be enjoyed together with wine.