阅读短文，选择正确的答案。
   Small，but there're many things in it：a bed，a desk and two chairs.On the desk，there is a computer.Now，Mr Smith's son，Jack，is in the tree house with his good friend Tom.They like playing computer games very much.Under the tree are the twins，Sally and Molly.
   Jack：Hi，Sally and Molly.Please come up and play computer games with us.
   Sally：Sorry，we can't.Come down，Jack.I find a wallet under your desk in the classroom.
   Jack：What colour is it？
   Molly：Black.There's a photo of your family.Look!This is you.
   Jack：Yes.That's my wallet.
   Molly：Come down and get it.Here you are.
   Jack：Thanks.
   Molly：You're welcome.

（1）The tree house is

B

B

.
A．big
B．small
C．old
（2）Tom's good friend is

C

C

.
A．Mr Smith
B．Sally
C．Jack
（3）

B

B

like playing computer games.
A．Sally and Molly
B．Jack and Tom
C．Tom and Sally
（4）How can we know the wallet is Jack's？

C

C

A．The wallet is black.
B．There's some money in it.
C．There's a photo of his family in it.
（5）Where's the big tree？

C

C

A．Behind Mr Smith's house.
B．In front of Mr Smith's house.
C．We don't know.