is known to us all that the old scientist，for life is hard in the past，still works hard in his eighties．
A．It；whom B．As；whom C．As；whose D．What：whom
The 8.0-magnitude quake，centered in Wenchuan County， more than 69000 people dead．
A．left B．leaving C．to leave D．having left
—How is your collection going?
—I need one more stamp before my collection ．
A．is completed B．will be completed C．has finished D．will be finished
Language belongs to each one of us，to the flower-seller to 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，in case he will eat almost anything．
A．whose B．which C．what D．when
Was it at the end of the exploration you discovered the evidence the monsters used to exist in the lake?
A．which；which B．that；that C．where；that D．that；which
