Questions 11 to 18 are based on the conversation you have just heard.

A．When the doctor told him to.
B．When his wife told him to.
C．When he had to.
D．When he felt better.

A．A couple of weeks with the computer first, and a few months with the word-processor later.
B．About one month with the word processor first, and a two-month, part-time period with the computer use.
C．About two months with computer first, and a one-month, part-time period with the word processor later.
D．About a two-month, part-time period with the word processor and computer.