--May I take your order now?

-- _______ .

[　　]

A. No, my goods are sold out

B. Yes, students must obey rules

C. Yes, I'd like a dish of chicken

D. No, everything is in order

--Wasn't it Dr Wang who spoke to you just now?

-- _______ .

[　　]

A. I didn't know he was

B. Yes, it was

C. No, he wasn't

D. Yes, he did

--Can you answer me some questions?

--Well, _______

[　　]

A. let me try.

B. I do.

C. can you give me a hand?

D. please tell me.

--How about the pair next to this? --I'm afraid it's ________ long, for it seems two inches ________.

[　　]

--Sorry, I haven't got enough money.

--________. It's on me ,today.

[　　]

--Is it going to snow tonight?

--I'm afraid ________.

[　　]

--Wasn't it Dr Wang who spoke to you just now?

--________.

[　　]

A．I didn't know he was

B．Yes, it was

C．No, he wasn't

D．Yes, he did

--Who is knocking at the door?

--________ me.

[　　]

—I'm going to Xi'an by air tomorrow.

—________.

[　　]

—You speak English very well.

—________.

[　　]