— Hello, Linda. How are you？— （)— I'm fine, thank you.

A. Hello, Linda! How are you？

B. Hello, Linda! I am pleased to meet you.

C. Good evening, Linda.

A.Go to school

B.How are you

C.Hello

A.Hello，how are you

B.Fine，thank you

C.How do you do

D.That’s OK

- Hello, how are you？

- ______

A：Hello, how are you？

B：How do you do？

C：Fine, thank you.

D：That's OK.

A、How are you

B、Hello

C、Good morning

D、How do you do

- Hello, Amy. How's everything？

- _________

A：Just so-so.

B：That's right.

C：How are you？

D：Good to see you.

A.How do you do？

B.Hello!

C.Nice to meet you。

D.How are you？

A. It is the size of the RSVP hello packet

B. It is how long it maintains RSVP neighbors

C. It is the length of time between RSVP hello packets

D. It is how long the router waits before declaring a router to be down