----I’m sorry, but there is 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 |
.It is _______ that he has been addicted to the drugs and has difficulty quitting it.
| A．obviously | B．apparently | C．possibly | D．likely |
Pudong Developmental Zone is no longer ________ it used to be.
| A．what | B．where | C．despite | D．there |
George Washington was born in 1732 in a rich family in _______ is now the state 
of Virginia.
| A．which | B．where | C．that | D．what |
Every possible means _______to prevent the air pollution, but the sky is still not clear.
| A．are being used | B．have been used | C．has been used | D．had been used |
He’s _______ to fail the exam if he doesn’t do any revision.
| A．near | B．fit | C．bound | D．easy |