单项选择题

______ for you help, we’’ d never have been able to get over the difficulties.

A．Had it not been
B．If it were not
C．Had it not
D．If we had not been
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单项选择题
A．ConsequentlyB．HoweverC．ComparativelyD．Alternatively
A．Consequently
B．However
C．Comparatively
D．Alternatively
单项选择题
A．keepB．keepingC．keptD．to keep
A．keep
B．keeping
C．kept
D．to keep
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