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---IsobusilyrecentlythatInotimetohelpyouwithyourmath.---That’sOK.Icanmanageitbymyself.A.havebeenworking;haveB.haveworked;hadC.amworking;willhaveD.hadbeenworking;hadhad

题目详情
--- I ______ so busily recently that I ______ no time to help you with your math.
 --- That’s OK. I can manage 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
A

recently常与现在完成时或一般过去时连用。第二空应用一般现在时。