单项选择题
It was not until 1920 ______ regular radio broadcasts began.
A.when
B.which
C.that
D.since
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单项选择题
A.Go to Japan.B.Change her job.C.Go to night school.
A.Go to Japan.
B.Change her job.
C.Go to night school.
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单项选择题
A.He worked there.B.He wanted to talk to Kate.C.He wanted to have a letter typed.
A.He worked there.
B.He wanted to talk to Kate.
C.He wanted to have a letter typed.
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删去in next year
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