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为什么不是c?2.---IsobusilyrecentlythatInotimetohelpyouwithyourmath.---That’sOK.Icanmanageitbymyself.A.havebeenworking;haveB.haveworked;hadC.amworking;willhaveD.hadbeenworking;hadhad
题目详情
为什么不是c?
2.
--- I ______ so busily recently that I ______ notime to help you with your math.
--- That’s OK.I can mana
ge it by myself.
A.have been working; have
B.have worked; had
C.am working; will have
D.had been working; had had
2.
--- I ______ so busily recently that I ______ notime to help you with your math.
--- That’s OK.I can mana
ge it by myself.
A.have been working; have
B.have worked; had
C.am working; will have
D.had been working; had had
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答案和解析
句子意思：我近来很忙,没时间帮你补数学.
时态是现在完成进行时,是英语中动词的一种基本时态,其构成为：主语+助动词（have/has）+been+动词的现在分词+其他成分.表示动作从某一时间开始,一直持续到现在,或者刚刚终止,或者可能仍然要继续下去.
时态是现在完成进行时,是英语中动词的一种基本时态,其构成为：主语+助动词（have/has）+been+动词的现在分词+其他成分.表示动作从某一时间开始,一直持续到现在,或者刚刚终止,或者可能仍然要继续下去.
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