单项选择题

______ he failed in the maths exam again, ______he never gave up.

A．Because, so
B．Although, but
C．Although, /
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He ______ here for five minutes before I arrived.
A．has come
B．had arrived
C．had been
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Jim with his parents______ abroad for two weeks.
A．have gone
B．has gone
C．will go
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