单项选择题

Although he was ill, ______ he went on working.

A．but
B．yet
C．and
D．while
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单项选择题
--I really don't know how to thank you enough.
A．No problem
B．Think nothing of it
C．Not at all
D．It doesn't matter
单项选择题
When she heard the news, her hope ______ disappointment.
A．got
B．turned in
C．turned to
D．felt
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