41、 Don' t __________ the camera __________. unless you are sure you can put it together.
A．take...off
B．work...out
C．set...off
D．take...apart


42、 It is not_______that this situation will last very long.
A．alike
B．the like
C．like
D．likely


43、 Where did you get your watch_________?
A．repair
B．to repair
C．repaired
D．repairing


44、 I could not afford to rent a house like that, __________it.
A．let alone to buy
B．let alone buy
C．to say nothing to buy
D．say nothing buying


45、 She is such a __________ person, always asking how I’m feeling.
A．considerable
B．considering
C．considered
D．considerate


46、 It is necessary that we__________ have a good command of English at college.
A．must
B．have to
C．should
D．ought to


47、 She leaned________the wall while she was speaking to her friend.
A．To
B．against
C．towards
D．for


48、 There were many people present and he appeared only for a few seconds, so I only caught a __________of him.
A．glance
B．glimpse
C．look
D．sight


49、 This kind of work is________me.
A．unfamiliar with
B．unfamiliar by
C．unfamiliar to
D．not unfamiliar of


50、 Not always they want to________.
A．people can do what
B．people cannot do what
C．can people do what
D．can’t people do what