I will go to the science palace to morrow ____ it doesn’t rain heavily.
| A．as if | B．in case | C．even if | D．so long as |
The hall __ we saw the film was very clean.
| A．that | B．which | C．in which | D．in that |
--Let us see your pass, ___. ---Sure.
| A．will you | B．shall we | C．will we | D．shall you |
I can't __ the difference between them because they look like the same.
| A．speak | B．talk | C．say | D．tell |
He ___ work in Hangzhou, did he?
| A．usedn’t | B．didn’t used | C．used to | D．usen’t to |
Do you know __ to deal with this kind of person?
A, how B. which C.what D. that