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1.l am not a great singer(disj)
2.They have been here. (special)
3.He reads this book in English. (alt)
4.Nobody lcnows about this.(disj)
5.We could stay ther long.(general)

1). I'm not a great singer, am I?2) Where have they been? 3) He reads books in English or in French? 4. Nobody knows about this, do they?5. Could they stay there long?