－ I didn't know my identity card（身份证 )was needed, sir.－ _________A.That's s

Why are you late for work？

A) I didn't know why.

B) I will do my best.

C) My car broke down on the highway.

D) I had a wonderful time.

A. I didn't know why.

B. I will do my best.

C. My car broke down'fin the highway.

D. I had a wonderful time.

听力原文：W: Good afternoon.Mr.Burke. Did you have a good lunch？

M: Yes,thank you,Miss Ventner.It was very good.Did anyone phone while I was out？

W: No, nobody phoned,but...er...Mr.Cooper came.

M: What？But he's the man I told you about!

W: Yes,I know,He came in for something urgent.He said he wanted to see you right away,but...

M: Well,then,why didn't you phone me？We all know that Mr.Cooper has some very important information.I wanted to talk to him as soon as possible.I told you all that before I left.Didn't you understand me？

W: Yes,of course,I understood you,Mr.Burke,but...

M: I even gave you a card with the name and phone number of restaurant!I put it on your desk.

W: But that's just it!You didn't give me the card.You didn't put it on my desk!

M: What do you mean？Of course I did.I took the card out of my wallet just before I went to lunch! Look!It isn't in my wallet now I! OH!

W: Mr.Burke,what's that card on the floor？It fell out of your wallet a second ago.

M: That card？It's...er...it's the card I thought I gave you.

W: You see!You forgot to give me the card!That's why I didn't phone.I didn't know where you were having your lunch.

M: No,of course you didn't.I'm very sorry,Miss Ventner.It wasn't your fault.I apologize.

W: That's all right.Please forget it.

What happened when the man was out？

A．Someone phoned.

B．Someone came.

C．The woman went out.

D．The woman phoned the man.

Why are you late for work？

A) I didn't know why.

B) I will do my best.

C) My car broke down on the highway.

D) I had a wonderful time.

My brother has just arrived, but I didn’t know he () to see me until yesterday afternoon.

A、come

B、came

C、was coming

D、is coming

I didn' t know anything about any of the books so my choice was quite________.

A．arbitrary

B．artificial

C．articulate

D．arduous

The mason ______ I didn't do this exercise is I didn't know how to do it.

A．why...because

B．why...that

C．for...that

D．that...because

Little ______ at that time that the course of my life was about to change.

A．did I know

B．I knew

C．I didn't know

D．have I known