No such authorization ______ be given without the president’s written permission.
A．should B．shall C．would D．may
eBay sells connections，not goods，______ buyer and seller into contact with each other.
A. being put B. putting C. has put D. puts
With more forests being destroyed，huge quantities of good earth ______ each year.
A. is washing away B. is being washed away
C. are washing away D. are being washed away
It is said that the meeting ______ for three hours. Why should I regret missing it?!
A. has been lasted B. has been lasting C. lasted D. had lasted
Hard work and lack of sleep has ______ her beauty and youth in recent years．
A. made out B. worn out C. wiped out D. sent out
-- How about camping this weekend, just for a change?
-- OK, ______ you want.
A. whichever B. however C. whatever D. whoever
