Iam reading a book now. i am not reading a book now. am i reading a book now? he is playing tennis now. he isn"t playing tennis now. is she dancing? you are not coming. the children are playing in the room now. are they watching tv now? he isn"t playing football. he is playing basketball. is he playing basketball? did he work last sunday? we had a good time last summer. they went to italy yesterday. they did"t go to usa yesterday. did she read books last evening? he was in london last winter. was he in london last winter? he wasn"t in london last winter. he was at home last week. where was he last week? the book was dull. was the book dull?
