that is my pencil sharpener(改為一般疑問句)
is that you pencil sharpener
ls your last name green(作否定回答)
no,it isn't
lt ls my red eraser?
my eraser is red
this is an english book(對(duì)劃線部分提問)
what's this?
her ruler is white(對(duì)劃線部分提問)
What color is her ruler?
ls thisa pen（做否定回答）
no,it isn't
ls that her eraser(做肯定回答)
yes,it is
is ,dictionary,red,his(連詞成句)
his dictionary is red
l am tim(改為一般疑問句并作肯定回答）
are you Tim?yes,i am
this is her pen(改為一般疑問句并作否定回答）
is this her pencil?no,it isn't
that is my book(改為一般疑問句并作肯定回答）
is that your book?yes,it is