情景交际。

1. —Is this_____book?

    —Yes. _____ my book.  And this _____ your pen.

2. —Excuse me. _____  this your ball?

    —_____,  it's not _____ ball. I think it's his ball.

3. —Look! This is my ruler.

   —It_____nice.

4.—_____ this?

   —It's a pencil.

  —_____ do you spell it?

—Can you speak French?

—_____.I only speak English.[ ]

A. Yes, I do                            

B. Yes, I can

C. No, I don't                            

D. No, I can't