Controlling water-pollution is necessary_____ it will be expensive.
| A．so that | B．as if | C．even though | D．ever since |
Language belongs to each one of us，to the flower-sellerto the professor．
| A．as much as | B．as well as | C．as far as | D．as long as |
He won't want to eat it unless he is really hungry，incase he will eat almost anything．
| A．whose | B．which | C．what | D．when |
Was it at the end of the explorationyou discovered the evidencethe monsters used to exist in the lake?
| A．which；which | B．that；that | C．where；that | D．that；which |
2008 was a great year，since when itgreat changes in China．
| A．saw | B．had seen | C．has seen | D．was seeing |
His behavior was we all refused to receive him in our homes．
| A．so that | B．that | C．such that | D．such |