单项选择题

Criticism and self - criticism is necessary（）it helps us to find and correct our mistakes.

A、 by that
B、 in that
C、 on that
D、 at that

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单项选择题

（）the heavy snow they could have arrived there earlier.

A、 But for
B、 For all
C、 Above all
D、 Except for

单项选择题

He speaks English（）better than I.

A、 very
B、 so
C、 too
D、 much

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