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

A．He is often made fun of by his friends.
B．He doesn’t like the jokes his friend makes.
C．He hates his life being interrupted by his friends.
D．His place is too small to put so many friends up.

A．Generating and distributing power.
B．Designing and building constructions.
C．Planning special industrial programs.
D．Setting standards to practice all the professions.