单项选择题

Was it in 1969 ______ the American astronaut succeeded ______ landing on the moon

A. when; on
B. that; on
C. which; in
D. that; in
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单项选择题
Students today are writing ______ of poetry.
A. a great many lines
B. quantities of lives
C. lots lines
D. a large number
单项选择题
I have given up trying to convince him; there is no point ______ with him.
A. on arguing
B. in arguing
C. to argue
D. for arguing
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