It is in their ability to speak ______ humans ______ from animals.
| A．which; differ | B．that; different | C．which; different | D．that; differ |
_______most of the people believed the Bears would win, the result came as the opposite.
| A．If | B．While | C．Unless | D．Since |
—Do you have anybody particular in ______ for the job？
—In my opinion, Tom is the right person..
| A．head | B．mind | C．heart | D．brain |
For environmental reasons，we _______as well take these waste products and have them recycled.
| A．shou1d | B．would | C．might | D．could |
The film Avatar will be on tonight but it’s at l：30am. I don’t want to ________that late.
| A．stay up | B．show of | C．put up | D．get off |
. It never occurred to humans until the mid-l990s _______some animals can be cloned.
| A．where | B．that | C．when | D．what |