This pencil is yours 改一般疑问句

This pencil is yours 改一般疑问句 pencil is yours this (连词成句） usually This is my pencil-sharpener.It is not( ).A.you B.your C.yours Whose pencil is nicer than yours? this is your pencil This book is yours This pen is yours Is the long pencil yours?Is the short pencil yours?改选择疑问句 Is this your pencil?是什么意思? Is this pencil your?改错 This is his pencil case. This dress is yours.对yours提问This dress is yours.对yours提问 Is this guitar your/yours? This is ( ) book.your|yours This is yours pen.为什么? is this new dress yours? is,than,my,5cm,yours,pencil,longer 连词成句谢快 is this watch yours?同义（ ）this （ )( )