should 和ought to
<p> <span word="should">should</span> 和<span word="ought">ought</span> <span word="to">to</span> 都为应该的意思，可用于各种人称。</p><p> ---<span word="Ought">Ought</span> <span word="he">he</span> <span word="to">to</span> <span word="go">go</span>?</p><p> ---<span word="Yes">Yes</span>. <span word="I">I</span> <span word="think">think</span> <span word="he">he</span> <span word="ought">ought</span> <span word="to">to</span>.</p><p> 表示要求，命令时，语气由 <span word="should">should</span>（应该）、<span word="had">had</span> <span word="better">better</span>最好）、<span word="must">must</span>（必须）渐强。</p>
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