英语否定句：IS this a teacher's desk? 否定回答是?

英语改否定句 Is this a ruler 如何改 先变成否定句,再变成一般疑问句,并做肯定,否定回答.1.He went to Hainan last week.2.She is a teac 英语否定句：IS this a teacher's desk? 否定回答是? this is a map.(改为否定句) This is a watch.改为否定句. this is letter A.改为否定句 This is a clock改为否定句 This is a lion.改为否定句 This is a pagoda.改成否定句 This is a UFO改为否定句还有This is a letter A 改为否定句 1,将下列六句陈述句改成疑问句,在做否定和肯定回答．(1)This is her ID cayd .(2)It's my pencil.(3)He is Tong.(4)I'm a teac her.(5)His phone number is 323-467.(6)she is Mary.急用! is this a cat in Englisn作否定句 This is a book.(改为否定句） this is a map of china改为否定句 This is a book（变为否定句） Is this a really busy term?否定句 this is a black cat.改否定句怎么改 tHIS IS A MAP OF cHINA.改为否定句