What about ________ out for a walk?

[　　]

He insisted on ________ to work in Xizhan.

[　　]

They had seen her ________ up from childhood.

[　　]

—Would you like to go with me to the concert?

—Thanks, but I ________ it already.

[　　]

—I fell from the stairs. I think my arm is broken.

—Oh, I ________ .

[　　]

________ does something against the law will certainly be punished.

[　　]

When you ________ homework, you may listen to some music.

[　　]

Mr. Zhang, I've come to say goodbye. I ________ the day after tomorrow.

[　　]

Would you please ________ the physics problem?

[　　]

I prefer reading books to ________, but he prefers to ________.

[　　]

A．play football, go outing

B．playing football, going outing

C．playing football, go outing

D．play football, going outing