How much ________ to post this letter to Australia?

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从方框中选择适当的答语完成下面的对话，并将选项字母填入方框下相应题号的横线上，备选答语中有两项为多余选项。

A: Good afternoon, Mr. White.

B: Good afternoon.  1.

A: Very well, thanks. And you?

B: I’m fine, too. The school term is nearly over.  2.

A: I’m going to take courses（课程）in a winter school.

B:  3.

A: English and computer.

B:  4.

A: Because English and computer are getting more and more important in our life.

B:  5.I hope you will work hard at them.

A. How are you going to spend the winter holidays?

B. Yes , I think so.

C. How is it going?

D. What courses?

E. Why do you choose these two courses?

A leading biologist has found the angels and fairies that sit at top of Christmas trees did not get there under their own power.
Prof Roger Wotton, from University College London, found that flight would be impossible for angels with arms and bird-like feathered wings. 
"Angels cannot take off and cannot use powered flight,” said Prof Wotton. “They would need to be exposed to very high wind velocities at take off - such high winds that they would be blown away."
Some the world’s most famous religious paintings and architecture make most Americans believe in angels.
The study found that 68 per cent of the 36,000 adults thought that angels and demons (魔鬼) were at work in the world.
According to the latest study, angels lack the powerful muscles which allow birds to beat their wings.
Prof Wotton’s paper explores why there are so many stories about angels. “Angels are very powerful religious icons for people with faith. Their similarity to humans adds to their power. At the same time, they have wings on them because they are more than human. They take messages to heaven and therefore have to fly.” said the academic.
【小题1】What did the leading biologist find?

At nine o'clock in the evening on 15 September,1961, Mr and Mrs Hill were driving along Motorway 3 (3号高速公路) when they saw a spaceship.

    They drove on to Sand field, the next town. They got there the next morning. Mr Hill looked at his watch.

    "Why did it take us so long? " he asked. "Three hundred and four kilometers in seven hours?"

     Mrs Hill went white in the face. "Something is strange, "she said." But I can't remember anything."

     Later, with the help of, a doctor, they remembered everything. After they saw the spaceship, they got out of their car and then they "lost" several hours.

     They remembered they heard a "bleep, bleep" noise from the spaceship. When they tried to run back to their car, there were three aliens (外星人) between them and their car.

     The aliens took them to their spaceship. They asked them questions about the food and drink on Earth. They were very interested in Mr Hill's teeth because his teeth could come out!

     Finally, the aliens took them back to their car and the spaceship flew away.

1.What time do you think the Hills arrived at Sand field?

        A. At4 a.m. on 15 September.      B. At 4 a.m. on 16 September.

        C. At 6 a.m. on 15 September.      D. At 6 a.m. on 16 September.

2.What made Mrs Hill feel strange at first?

        A. Short way but long time.          B. Short time but long way.

        C. Poor memory during the drive.     D. Careful driving on Motorway 3.

3.The right order to show what happened to the Hills is

a. they got out of the car                  b. they saw a spaceship

c. they were asked some questions          d. they met three aliens

A. b;a;d;c                   B. a;b;c;d

C. d;a:b:c                   D. c:d:b:a

4.Which of the following pictures can best explain why the aliens were interested in Mr Hill's teeth?