单项选择题

Although customers keep complaining about their Poor service, they've made no ______. to make any improvement.

A．action
B．trial
C．attempt
D．progress
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单项选择题
Neither of the young men who had applied for a position in the university ______.
A．has been accepted
B．have been accepted
C．was accepted
D．were accepted
单项选择题
The shoemaker can mend whatever______.
A．which needs mending
B．needs to be mended
C．it needs mending
D．that needs mending
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