单项选择题

It was not until 1920 ______ regular radio broadcast began. [ A] that [ B] while [C] which [D] since
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单项选择题
—Have you finished your report yet —No, I'll finish it in ______ ten minutes.
A．more
B．less
C．other
D．another
单项选择题
If I had, ______I'd visit Europe stopping at all the small interesting places.
A．an enough long holiday
B．a holiday enough long
C．a long holiday enough
D．a long enough holiday
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