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1 . We ____________ have proved great adventurers, but we have done the greatest march ever made in the past ten years.
| A．needn’t | B．may not |
| C．shouldn’t | D．mustn’t |
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12-13高三下·河北廊坊·阶段练习
2 . (2013·保定唐县一中高三一模)—Is it good to look up every new word when I come across it in reading?
—No, you ________， because you are likely to guess the meaning from the context.
—No, you ________， because you are likely to guess the meaning from the context.
| A．don't have to | B．shouldn't |
| C．can't | D．mustn't |
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