问题
选择题
The ship would have sunk with all on board ______ for the captain.
A．if it was not
B．had it not been
C．if it has not been
D．not had it been.
答案
答案：B
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The ship would have sunk with all on board ______ for the captain.
A．if it was not
B．had it not been
C．if it has not been
D．not had it been.
答案：B