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1. He has changed so much lately.2. They were abroad five years ago,3. My parents have already left to the country.4. Her health has improved greatly.5. Last night I went to bed very early. 1. He has published his new novel this week.Has he published his new novel this week? What has he published this week? Who has published his new novel this week? 2. Ann will have come home by then.Will Ann have come home by then? Where will Ann have come by then? Who Will have come home by then? 3. My friends had discussed this play by that time yesterday.Had my friends discussed this play by that time yesterday? What had my friends discussed by that time yesterday? Who had discussed this play by that time yesterday? 1. You may go now.2. Can Mike run very fast? 3. You must work hard at your English.4. You must not smoke here. 5. Can/may I take Pete's bag?