It _______ long before we ______ the result of the experiment.
| A．will not be; will know | B．is; will know | C．will not be; know | D．is; know |
It’s politely requested by the hotel management that radios _____after 10 o’clock at night.
| A．were not played | B．not to play | C．not be played | D．did not play |
In the_____of proof , the police could not take action against the man .
| A．lack | B．shortage | C．absence | D．failure http:/ |
By the time I swa the angry expression on his face, I ______ exactly what I was having to face. But not for a moment _______ I should quit.
| A．had known; I thought | B．have known; had I thought |
| C．would know; I would think | D．knew; did I think |
It’s high time we _______ to the theater.
| A．will | B．shall | C．are going to | D．went |
Let’s clean the classroom, ________?
| A．won’t you | B．shall we | C．do we | D．will not you |