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英语-单项选择18.Did you finish your work ?No,I wasn't able to ,___

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英语-单项选择
18.Did you finish your work ?
No,I wasn't able to ,____you?
A)was B)do C)are D)were
32.If the old man didn't see his dog for an hour or so, he_____out of the house to look for it.
A)walked B)would have walked C)would walked D)was walking
最好能有详细解释 ,答案是dd,请问kevinyb第32题为什么选d?
第一题选D,are you 是反过来问对方情况怎么样,同时由于前面用的是过去式,应该与之相对应,因此are 改为were.
第二题选C,只是虚拟条件句形,是假设某种情况,接着对某种情况产生的结果进行猜测前一句说如果老人有一回看不见他的狗,这是一种假设,后面要进行猜测,一般由would引导.因此首选B.C两项,但是B和C不同的是,would have walked 是说老人找不到狗已经成为事实,而C才是真正的假设,因此选C