——I’m sorry , but there’s no smoking on this flight ．
——Oh, I _______that ．Sorry , I won’t again ．
| A．don’t know | B．didn’t know |
| C．won’t know | D．haven’t known |
His plan was such a good one_________we all agread to accept.
| A．so | B．and | C．that | D．as |
They went into the room and saw a large piano standing____ the wall,covered with thick cloth.
| A．against | B．onto | C．behind | D．on |
With no one to_____in such a frightening situation,she felt very helpless.
| A．turn up | B．turn to | C．turn off | D．turn out |
----Have you read the paper?
----Yes, but I don’t think there is _______ new in it.
| A．something | B．nothing | C．anything | D．what |
Even if the treatment ________, there is still no magic pill for patients in the late stages of AIDs.
| A．does | B．uses | C．works | D．helps |