He___in the classroom just now , he ___be there now A. heard
He___in the classroom just now , he ___be there now A. heard to sing , may B.was heard sing
He___in the classroom just now , he ___be there now A. heard to sing , mayB.was heard sing ,must c.heard sing , must. D.was heard to sing , may
He___in the classroom just now , he ___be there now A. heard to sing , mayB.was heard sing ,must c.heard sing , must. D.was heard to sing , may
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B 第一个空主动语态是hear sb do sth ,变成被动是be heard do sth
第二空must表示肯定推测,一定还在那里
第二空must表示肯定推测,一定还在那里
1年前
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