David and his friends like to have a picnic in the park on a ______ day.

______ at the airport, David found his friend had departed.

A．When arrived

B．When having arrived

C．When arriving

D．When arrived at

A.When arrived

B.When having arrived

C.When arriving

D.When arrived at

A.who

B.if

C.while

D.though

A．who

B．if

C．while

D．though

A.Charlie is not going to school for next week?

B.That doesn’t surprise me. The dog has a miserable personality.

C.It’s a bout David’s friend Ted and his dog Charlie.

听力原文： My friend, David kept birds. He loves his birds very much. One day he phoned me, and told me that he was going away for a week. He asked me to feed the birds for him and said that he would leave the key to his front door in my mailbox. Unfortunately, I forgot all about the birds until the night before David was going to return. What was worse, it was already dark when I arrived at his house. I soon found the key David gave me could not unlock either the front door or the back door. I was getting hopeless. I kept thinking of what David would say when he came back. I was just going to give up when I noticed that one bedroom window was slightly open. I'm very happy. I found a stone and pushed it under the window. As the stone was very heavy, I made a lot of noise. But in the end, I man- aged to climb up and open the window. I actually had 'one leg inside the bedroom when I suddenly realized that someone was shining a flashlight up at me. I looked down and saw a policeman and an out lady, one of David's neighbors. "What are you doing up there？" asked the policeman. Feeling like a complete fool, I replied, "I was just going to feed Mr. David's birds. "But I don't think they can believe me.

Who is the speaker？

A．A policeman.

B．David's neighbor.

C．David's friend.

A.A policeman.

B.David's neighbor.

C.David's frien

听力原文：M: Math Department, Jimmy Brown speaking.

W: Hello, Professor Brown, this is Alice Hill calling, I'm a friend of your teaching assistant, David Williams. He's got a bad cold. David asked me to call you because he's lost his voice.

M: Lost his voice. Oh, poor boy! Is there anything I can do for him？

W: Well, he has a class this morning from ten to eleven thirty and he won't he able to teach it, but he doesn't want to cancel it either.

M: He wants me to try to find someone else to teach the class？

W: No, not exactly. What he wants to do is to get someone to go in for him, just to pass back the mid-term exams. He's already marked them and they are on the desk in his office. The whole thing wouldn't take more than ten minutes.

M: His classes are ten, eh？ At that time I was going to he on campus anyway; so I could do it for him. What room is his class in？

W: Cander Hall, Room 214. Will you need his office key to get the exams？ He's given it to me and I can bring it to you.

M: Actually, that won't be necessary. We have a master key in the maths department. So I can get into his office.

W: Thank you very much, Professor Brown. David doesn't have another class to teach until Thursday, and hopefully, he will be able to talk by then. He'll call you as soon as he can. Oh, yes, I almost forgot. Could you put the next assignment on the board, too？ It's all the problems on page forty-five, and they are due at the next class.

(20)

A．He forgot to assign homework to his students.

B．He has no time to give the class.

C．He is ill, but he has a class today.

D．He has forgotten to take his key and can't get into his office.