36、 The forest guards often find campfires that have not been__________completely．
A．turned down
B．put out
C．put away
D．turned over


37、 But for their help, we __________
A．shouldn't succeed
B．could not have succeeded
C．will not succeed
D．should not have succeeded

38、 The English language is closely __________ to German．
A．constant
B．related
C．concerned
D．regarded


39、 He a sum of money every week for his old age.
A．sets up
B．sets out
C．sets against
D．sets aside


40、 He said current interest rates are a direct__________ of domestic (国内的) and international conditions.
A．affect
B．effect
C．income
D．outcome


41、 Mother insisted that
A．they are to be back before nine in the evening
B．they ought to be back before nine in the evening
C．they be back before nine in the evening
D．they had to be back before nine in the evening


42、 They failed to pass the exam last time, I regretted __________
A．to be not able to help
B．being unable to help
C．being not able to help
D．not be able to help


43、 It is required that such insulator ( 绝热体) __________a heat resistant material.
A．must be made of
B．should be made of
C．will be made of
D．would be made of


44、 Linda has lost her wallet again． It is the second time this __________
A．has happened
B．happened
C．happen
D．was happened


45、 Many a child __________ killed in that car accident．
A．is
B．are
C．was
D．were