— Has Sam finished his homework today? — I have no idea. He ________ it this morning.
—HasSamfinishedhishomeworktoday?—Ihavenoidea.He________itthismorning.A.didB.wasdoingC...
— Has Sam finished his homework today? — I have no idea. He ________ it this morning. A.did B.was doing C.has done D.had done
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