A.And I think email is one of the best ways to communicate with others.
B.I've got so many emails to go through.
C.I agree with you.
D.Of course!
E.How many email addresses have you had？
F.I feel like playing computer games.
G.I am not sure whether I'm right or wrong.

A：It's very late.Are you still on the computer？
B：Well，yes.（1）

B

B

A：What kind of emails？
B：Some are messages from my friends and some are from the relatives.
A：Do you have to write them back right away？
B：（2）

D

D

People usually want a quick reply.
A：（3）

E

E

B：I've already had 50 people's addresses in my address book.（4）

A

A

A：（5）

C

C

Email is really very convenient.