《Past and Present》Integrated SkillsPPT
《Past and Present》Integrated SkillsPPT第4页

动 词 填 空: 1._____ you ________(clean) the room? Yes, we __________(do) that already. When _______ you ______(do) it? We _______(do) it an hour ago. 2.______ he ______(see) this film yet? Yes. When _____ he _____(see) it? He ______ it last week. 3. How many times _____you______(be) there?

Have

cleaned

have done

did

do

did

Has

seen

did

see

saw

have

been

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