摘要：8．A．speech B．living C．promise D．progress
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The secretary worked late into the night, ________ a long speech for the president.
[ ]
A．to prepare
B．preparing
C．prepared
D．was preparing
The secretary worked late into the night,________ a long speech for the president.
[ ]
A. to prepare
B. preparing
C. prepared
D. was preparing
The secretary worked late into the night, ________ a long speech for the president.
[ ]
A．to prepare
B．preparing
C．prepared
D．preparing for