单项选择题

Until last year，she was the largest ship that （）．

A. was ever built
B. has ever built
C. has ever been built
D. had ever been built

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You’d better go now, （） you’ll miss the next train.

A. if
B. or else
C. or not
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Had you worked harder．you（）a lot more．

A．will learn
B．will have learned
C．would learn
D．would have learned
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