________ over everything whenever we want to make a decision, many people believe, and we will have less chance of making mistakes.
| A．To think | B．Think | C．Thinking | D．Thought |
. They _______ Tom to record the hit single.
| A．kept up with | B．caught up with |
| C．put up with | D．teamed up with |
.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 |