问题标题：
[请教]高二英语单选题1.She_____thebooksometimeinthepast,orshe____thequestionsowell.A.musthaveread;couldn'thaveansweredB.mustread;couldn'thaveansweredC.musthaveread;couldn'tanswerD.musthaveread;can'tanswer2.Wearego
问题描述：
[请教]高二英语单选题
1.She_____thebooksometimeinthepast,orshe____thequestionsowell.
A.musthaveread;couldn'thaveanswered
B.mustread;couldn'thaveanswered
C.musthaveread;couldn'tanswer
D.musthaveread;can'tanswer
2.Wearegoingtodiscussthewayofreadingworks____itisusedforreallifepurpose,andthisshouldgiveyouabetterunderstandingofit.
A.that
B.which
C.where
D.when
请达人解析一下以上两道题,并选出正确答案.
刘胡瑶回答：
A
她一定读过
读过才知道,读是完成的动作,用完成的musthaveread
否则,她不可能回答地这么好.她回答了吗?回答了,而且很好地回答过了,“她不可能回答地这么好”得用虚拟的
用couldn'thaveanswered表示一种虚拟语气
"it"isusedforreallifepurpose
晕从句什么都不缺啊.只能选whereandwhen
C在现实生活（什么地方）的应用好还是什么时候在现实生活应用
选C好
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