摘要： -- Has Tommy 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 Tommy 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 Tommy 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 Tommy 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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