单项选择题

You will succeed in the end ______ you give up halfway.

A．even if
B．as though
C．as long as
D．unless
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单项选择题
When you ______ a new word while reading, don t always turn to the dictionary.
A．come across
B．come up
C．come over
D．come through
单项选择题
The method is ______ success and the students have made ______ progress.
A．a; the
B．/; the
C．a; /
D．/; /
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