Questions 15—18

A． I am interested in your new techniques and I want to make an appointment.
B． I want to talk to our technician to see if he is interested in your new products.
C． I can ask some of our staff to give you information about our new products.
D． I hope you understand that I have to attend a meeting about our new products.

A． Many animals and plants would die because they cannot survive the changing environment.
B． Many animals would be slaughtered, since they fail to adapt themselves to the existing outside world.
C． Most people would feel sorry for the destiny of endangered species, if they become extinct on earth.
D． Most species would react fast enough to adapt themselves to the ever-changi~4g conditions of nature.