补全对话(共5小题：每小题1分，满分5分)
根据对话内容，从所给选项中选出能填人空白处的最佳选项。有多余选项。
A: _____
B: Hello, Steve.
A: What' s your name?
B: Jim Harold.
A: _____
B: H-A-R-O-L-D.
A: ____
B: It's 629-463.
A: ____
B: No, it isn't.
A:_____
B: It' s a computer.
A: Thank you.

A．How do you spell your family name?

B．Is this a box?

C．What' s it?

D．What's your phone number?

E. Hello, my name is Steve.
F. Hello, Steve.
G. Spell it.