A.What do you think?
B.What a good friend you are!
C.Yeah. That's a good idea. I'd love to.
D.Yes I am very busy.

A.No, have you?
B.That sounds like fun.
C.Not really.
D.Yes, it is certainly.

A.had been laid off
B.were
C.What
D.including

A.had been laid off
B.were
C.What
D.including

A.waves
B.smooth
C.as
D.bounces

A.to screen
B.responsible
C.batteries
D.newly developed

A.energy
B.infancy
C.Smart Technology
D.pilot

A.Smart Grid technology will only be available in cities.
B.More people will be living in cities in the future than nowadays.
C.All buildings will generate their own electricity.
D.People in cities will be using cars and buses powered by electricity.

A.at danger
B.at risk
C.on edge
D.on the verge

A.admit
B.realize
C.recognize
D.find