I should very much like to go to the party, but ________.

[　　]

Bill ________ a job in a factory, but he refused to take it.

[　　]

Has all ________ can be done ________?

[　　]

A．what, done

B．that, been done

C．that, already done

D．what, already been done

“Why does Ling Ling look so unhappy?”“She has ________ by her classmates.”

[　　]

I don't think the window ________ yet.

[　　]

I saw your brother when he ________ to hospital after the accident.

[　　]

As we know, she ________ a warm-hearted woman.

[　　]

“The sports meet has already started.” “Look, the flag is ________ now.”

[　　]

Hunter told Mary that he ________ what he was doing during the holidays.

[　　]

She ________ ballet since she ________ a little girl.

[　　]