------is that?it’s a chair.1、how 2、who 3、what

You think it's a joke,then that it is. Who's that?A It's Tom BThis is Tom -What's that? -It is a s（ ） of keys. that it is!和that's it! that it is!和that's it! who is that?A.That's a student B.It's Bob C .This is Bob _____ a ruler ? yes,____. A.Is this, it is B.Is that,it‘s C.this is, it's Who is that?Oh,--------- Michael.A.this is B.it's C.his D.that's Who is that?( )Mary A it's B she's C that's ---What is that? ---( ) A.It's a bottle. B.That's a bottle. C.It's bottle. is that your ring?( )that's his ring?A,yes,it is B,it isn't C,yes,that is 改错改错Is that a pencil case?Yes,it's. What is that?It's a w这一句有哪些错误? It's a map .is that her?改病句 急 what is that?（ B)a crayon.A That is B It’s 为什么选B? 是it's surprise that还是it is a surprise that 正确? Is that Lin Fang?A:Yes,it isB:No,that isn'tC:Yes,it's That is a______ ________.Let's make it ________.That is a ______ ________.Let's make it ________.