二、词汇与语法知识
6、
John________  he could improve his exam results, but he did not have enough time to study．
A．knows how
B．knows that
C．knew how
D．knew that


7、
How can he do so much work? He ________ stay late at the office every evening and take work home at weekends．
A．need
B．can
C．might
D．must


8、
What we have to take________the courses offered only for this term．
A．are
B．is
C．have been
D．has been


9、
Though adults breathe twelve times a minute, breathing is so automatic________the averageperson hardly ever thinks about it．
A．and
B．that
C．for which
D．in fact


10、 Only with your help,________such difficulties in the field．
A．  can we overcome
B．  we can overcome
C．should we overcome
D．we should overcome


11、
He________studied, yet he passed every exam．
A．frequently
B．little
C．regularly
D．rarely


12、
-- How do you like these chairs?
-- Yes, they are actually nice but they are not much ________ demand now．
A．in
B．on
C．at
D．for


13、
His health failing,________ in 1995．
A．Andrew Peters went on leave from the army
B．so Andrew Peters went on leave from the army
C．when the army gave Andrew Peters leave
D．the army gave Andrew Peters leave


14、
Mary's parents are worried about Mary because no one was aware ________ she had gone．
A．of where
B．where that
C．the place
D．where of

15、
I don't think my eyes are as good as they used to be．I need to have them________
A．tested
B．cleaned
C．serviced
D．cared


16、
The development of the light bulb ________partly as a result of the widespread availability of　electricity and the need for cheap, clean light．
A．occurring
B．was occurring
C．was occurred
D．occurred


17、
His doctor suggested that he________  his right hand．
A．avoid using
B．avoid to use
C．has avoided using
D．avoids to use


18、
From here, we can see the bridge ________ construction．
A．below
B．under
C．by
D．with


19、
I am quite________her face, but I just cannot recall her name．
A．familiar at
B．familiar with
C．acquainted with
D．acquaintance


20、
They kept me ________for more than an hour
A．waits
B．wait
C．waited
D．waiting