单项选择题
The reason (why) Jack (failed) to (attend) the lecture is (attend) he had a bad cold.
- A．why
B．failed
C．attend
D．attend
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A．It turned out
B．why
C．got out
D．had forgotten -
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We kept our ______ all night to frighten the wolves.
A．burning fire
B．burnt fire
C．fire burning
D．fire burnt -
单项选择题
He found ______ everybody know what had happened.
A．it necessary letting
B．it necessary to let
C．necessary letting
D．necessary to let
