This is his pencil-box.改为复数句子怎么改?

This is his pencil case. this is his pencil case 复数句 This is his pencil.(改为否定句) This isn't my pencil box.-----is red.A.My B.Mine C.Her D.his This is his pencil-box.改为复数句子怎么改? 将this is his pencil改为一般疑问句 This pencil case is his 改为同义句 This is his red pencil改为同义句 （ ）（ ）a red pencil This is his red pencil改为同义句 （ ）（ ）a red pencil. this is your pencil IS this his book?改为复数句 This is my pencil.改为同义句 This is his pencil case改为一般否定句 This is my eraser 改为否定句 This is his pencil case改为一般否定句 This is my eraser 改为否定句 No,（） pencil is in the pencil case.A I B my C his D me a:----------you tom?b;yes ,i -----.a：tom,-----this your pencil?b:and is that your dictionaty?b:no,-------,-------his dictionary. 把英文陈述句改为一般疑问句 1.that is a blue ruler 2.it is his pencil 3.this is her pencil-case4.that is his green cup This is ( ) pencil-case.( ) is in my bag.A.his;My B.my;Your C.your;Mine D mine;Her 为什么? 用not、this、her、is、case、pencil一句话再用pen、that、his、is