影响供给价格弹性的因素主要有（）。

听力原文：When did you last talk to Mr. Green？

(A) I prefer it in red.

(B) The presentation will last about 40 minutes.

(C) Yesterday on the telephone.

(11)

A．

B．

C．

听力原文：W：May I borrow your ladder for an hour，Mr. Riley？

M：Of course you may，but I don't think you should try to pick those green apples in the upper branches for at least two more weeks. By that time they will all be red.

Q：Why didn't Mr. Riley think the woman should borrow his ladder at that time？

(13)

A．The ladder was borrowed away at that tinge.

B．The lower branches didn't have any green apples.

C．The apples on the top branches weren't ripe.

D．There are less apples in the upper braches at that time.

I have two leaves.()

What is the right order of the five colors mentioned in this passage？

A．Red, blue, yellow, black and green.

B．Blue, yellow, red, green and black.

C．Yellow, blue, black, green and red.

D．Blue, yellow, black, green and red.

What is the right order of the five colors mentioned in this passage？

A．Red, blue, yellow, black and green.

B．Blue, yellow, red, green and black.

C．Yellow, blue, black, green and red.

D．Blue, yellow, black, green and red.

听力原文：W: I have a blue umbrella.

M: John has a black one and I have a green one.

What color is the woman's umbrella？

A．Blue.

B．Black.

C．Green.

Have you seen Mr Green？ Yes, I saw him at the school gate. He_ with the headmaster.

A is talking

B.was talking

C. talked

D.has talked

听力原文：W: I have a blue umbrella.

M: John has a black one and I have a green one.

What color is the woman's umbrella？

A．Blue.

B．Black.

C．Green.