摘要:-- Has Jack finished his homework yet? -- I have no idea,he ___it this morning. A.was doing B.had been doing C.has done D.did
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.—— Has Jack finished his homework yet?
—— I have no idea; he ___it this morning.
A.was doing B.had been doing C.has done D.did
查看习题详情和答案>>—— Has Jack finished his homework yet?
—— I have no idea; he ___it this morning.
A.was doing B.had been doing
C.has done D.did
查看习题详情和答案>>— Has Jack finished his homework yet?
— I have no idea;he __it this morning.
A. was doing B. had been doing C. has done D. did
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