Is this red ruler (

Is this red ruler ( This is a red ruler 用a red ruler 提问 This is not () ruler .my ruler is red . is,a,this,red,ruler 连成句 This is a red ruler对划线部分提问 This is a ruler.___is red He's my friend.__ is red Those 选择题What's this?A.It's Z.B.It's red.C.This is ruler. Look This is a pen and it's red .The ruler is yellow.The key This is a jacket in English.(提问） The ruler is red.(提问） That ruler is a (rectangle) 括号提问 This is a red strawberry 改复 This is a red apple.该成疑问句 lt‘s a ruler in English .对a ruler提 ( ) ruler is this?