Questions 14—16 are based on the following dialogue about how to use a recorder. You now have 15 seconds to read Questions 14—16What must you make sure when you load the cassette

A．Plants produce their own food but animals don’t.
B．Plant cells have a wall which is non-living in chemical nature but animal cells haven’t.
C．Plants are green but animals aren’t.
D．Plants can’t move but animals can.

A．Tolerant.
B．Indifferent.
C．Disappointed.
D．Surprised.

A．New kind of desks and chairs should be made.
B．Many companies are trying to improve the working settings for their employees.
C．Classroom interaction between students is essential to the training of critical thinking.
D．A comfortable environment leads to higher working efficiency.