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You       trust an online shop just because it has a beautifully-designed website.
A.shouldn’tB.mustn’t C.couldn’tD.needn’t
B

试题分析:考查情态动词用法。shouldn’t不应该;couldn’t不可能;needn’t不需要;Mustn’t千万不能,禁止;句意:你千万不能只是因为有漂亮的网站就相信网上的商店。故B正确。
点评:Mustn’t千万不能,禁止;要注意情态动词的一些特殊用法,如must表示偏偏,非得;
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