补全对话，每空一词。

A: Good morning, everyone! I' m your English teacher.  1   name' s Tina Smith.

    What's   2   name, boy?

B: My  3   David.

A: Nice to   4  you, David.

B: Nice to meet you,   5  .

A: What's the girl's name, please?

B:   6  name is Lily, she is   7  good friend.

A:  8   what's  9  name?

B: His name is Bill. He  10   my good friend, too.

1._____2._____3._____4._____5._____

6._____7._____8._____9._____10._____

期货投机者进行期货交易的目的是( )。

A．承担市场风险

B．获取价差收益

C．获取利息收益

D．获取无风险收益