1 . – Why you didn’t handed in your exercise paper?
–Sorry, but I ____ that it should be turned in today.

A．didn’t know	B．hadn’t known
C．haven’t known	D．don’t know

2 . —How is the debate of your essay?
—It ____ well, but I ____one of the key points.

A．might work; hadn’t forgot	B．needn’t have worked; forgot
C．could have worked; forgot	D．would work; hadn’t forgot

3 . A student of Fudan University ___ Huang Yang, was reported ____ by his roommate, ______ the whole nation.

A．named; to have been poisoned; which shocked	B．naming; being poisoned; shocking
C．named; to be poisoned; shocked	D．named; poisoned; as shocked

4 . All the doctors in the hospital insisted that he________badly wounded and that he______at once.

A．should be, be operated on	B．were, must be operated on
C．was, should be operated	D．was, be operated on

5 . Scientists have many theories about how the universe         into being.

A．came

B．was coming

C．had come

D．would come

6 . ―Our company will organize a trip to Hongkong next month. I ______ my mother there.
―I’d rather you ____. After all she has just recovered from her illness and she still feels weak.

A．will take; won’t	B．am taking; don’t
C．will take; didn’t	D．am taking; didn’t