... she is not. - Is it easy? - Yes, it is. - Is he dirty? - No, he is not. - Is she clean? - Yes, she is. - Is it difficult? - No, it is not. - Is it loose? - Yes, it is. - Is it ... not. - Is he ? - , he is. - Is she ? - , she is not. - Is it ? - , it is. - Is it ? - , it is not. - Is it ? - , it is. - Is it ? - , it is not. Bước 4: Đọc những câu ... - Is he ? - , he is. - Is she ? - , she is not. - Is it ? - , it is. - Is he ? - , he is not. - Is she ? - , she is. - Is it ? - , it is not. - Is he ? - , he is. ...