单项选择题

______ we need air and water, so do we need criticism and self-criticism.

A．Even though
B．So long as
C．Just as
D．Now that
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单项选择题
They all returned to the village ______ that the danger was over.
A．convincing
B．convinced
C．to convince
D．having been convinced
单项选择题
Many a person in this circumstance ______ for a long break.
A．have hoped
B．has hoped
C．are hoping
D．has been hoped
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