48.______ much is known about what occurs during sleep, the precise function of sleep and its different stages remains
largely in the realm of assumption.
A) Because B) For C) Since D) While
49.John doesn’t believe in ______ medicine; he has some remedies of his own .
A) standard B) regular
C) routine D) conventional
50.Owing to ________ competition among the airlines, travel expense have been reduced considerably.
A) fierce B) strained
C) eager D) critical
51.They always give the vacant seats to comes first.
A) whoever B) whomever
C) who D) whom
52.In Africa, educational costs are very low for those who are _________ enough to get into universities.
A) ambitious B) fortuante
C) aggressive D) substantial
53.Professor Wang,_______ for his informative lectures, was warmly receive d by his students.
A) knowing B) to be known
C) known D) having known
54.Our manager is _______ an important customer now and he will be back this afternoon.
A) calling on B) calling up
C) calling in D) calling for
55.A fire engine must have priority as it usually has to deal with some kind of _______ .
A) precaution B) crisis
C) emergency D) urgency
56.He said that the driver must have had an accident; otherwise he _____ by then.
A) would have arrived B) should arrive
C) must have arrived D) would arrive
57.The film provides a deep _______ into a wide range of human qualities and feelings.
A) insight B) fancy
C) imagination D) outlook
58.It is high time that such practices __________ .
A) are ended B) be ended
C) were ended D) must be ended
59.Urban crowdedness would be greatly relieved if only the _____ charged o n public transport were more reasonable.
A) fees B) payments C) fares D) costs
60.The doctor had almost lost hope at one point, but the patient finally _________ .
A) pulled out B) pulled up
C) pulled through D) pulled over
largely in the realm of assumption.
A) Because B) For C) Since D) While
49.John doesn’t believe in ______ medicine; he has some remedies of his own .
A) standard B) regular
C) routine D) conventional
50.Owing to ________ competition among the airlines, travel expense have been reduced considerably.
A) fierce B) strained
C) eager D) critical
51.They always give the vacant seats to comes first.
A) whoever B) whomever
C) who D) whom
52.In Africa, educational costs are very low for those who are _________ enough to get into universities.
A) ambitious B) fortuante
C) aggressive D) substantial
53.Professor Wang,_______ for his informative lectures, was warmly receive d by his students.
A) knowing B) to be known
C) known D) having known
54.Our manager is _______ an important customer now and he will be back this afternoon.
A) calling on B) calling up
C) calling in D) calling for
55.A fire engine must have priority as it usually has to deal with some kind of _______ .
A) precaution B) crisis
C) emergency D) urgency
56.He said that the driver must have had an accident; otherwise he _____ by then.
A) would have arrived B) should arrive
C) must have arrived D) would arrive
57.The film provides a deep _______ into a wide range of human qualities and feelings.
A) insight B) fancy
C) imagination D) outlook
58.It is high time that such practices __________ .
A) are ended B) be ended
C) were ended D) must be ended
59.Urban crowdedness would be greatly relieved if only the _____ charged o n public transport were more reasonable.
A) fees B) payments C) fares D) costs
60.The doctor had almost lost hope at one point, but the patient finally _________ .
A) pulled out B) pulled up
C) pulled through D) pulled over