The maths teacher demanded that all the students _______ the examination paper within one and a half hours.
| A．would finish | B．finished | C．finish | D．could finish |
The Oscar is one of the film prizes__________offered to any Chinese actor or actress so far.
| A．which is not | B．that have not been |
| C．that has not | D．that has not been |
She won the first prize in the speech contest and __________surprised us.
| A．which | B．it | C．as | D．who |
Li Fang is very busy，__________she’s always helping others with their lessons.
| A．but | B．although | C．so | D．for |
—Helen must obey her parents.
—Oh，she must，__________?
| A．must she | B．mustn’t she |
| C．shouldn’t she | D．should she |
We must do the experiment carefully__________Miss Liu told us.
| A．what | B．since | C．as | D．while |