代词专项训练（二）
一、根据题意，用所给词的适当形式填空。
1. Mary is a friend of ______ (I).
2.This is ____
__(she) ruler. ______ (I) is in the bag.
3.Her brother is too young to look after ______ (he)
.4.This is _____
_(I) book. This book is ______ (I).
5.These pens are
______ (we).
二、改写下列句子。
例：This is my book.
—The book is mine.
That is her ruler.
_____________________________
These are their footballs.
____________________________
This
is my backpack.
___________________________
__Those are your boxes.
_________________ ...