41、 I can’t keep_______the teacher who speaks so fast.
A．up
B．up with
C．With
D．on with

42、 Do you know why John didn' t __________at the party yesterday evening?
A．show off
B．show down
C．show up
D．show in


43、 Fifty years ago, wealthy people liked hunting wild animals for fun __________ sightseeing.
A．than to go
B．rather than to go
C．more than going
D．other than going


44、 The notice was written in several languages ______ foreign tourists should misunderstand it.
A．so that
B．if
C．lest
D．otherwise


45、 ________at the door before you come into the room.
A．Hit
B．Knock
C．Touch
D．Strike

46、 Tony is very disappointed ______ the results of the exam.
A．for
B．toward
C．on
D．with


47、 __________the traffic jam, we would have caught our train.
A．But for
B．Because of
C．By means of
D．Due to


48、 The storm sweeping over this area now is sure to cause __________ of vegetables in the coming days.
A．rarity
B．scarcity
C．invalidity
D．variety


49、According to the American federal government, residents of Hawaii have the longest life __________.
A．scope
B．rank
C．span
D．scale


50、 --"What' s in your hand?"
--"It is a________bill. "
A．two-thousand dollar
B．two thousand dollars
C．two-thousand-dollar
D．two-thousand-dollars