单项选择题

Investigators agreed that passengers on the airliner______ at the very moment of the crash.

A．should have died
B．must be dying
C．must have died
D．ought to die
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单项选择题
These people once had fame and fortune; now______ is left to them is utter poverty.
A．all that
B．all what
C．all which
D．that all
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