1.Those are my books改为一般疑问句2.This is his ruler 改为复数句 3.That is my brother改为复数句

1.Those are my books改为一般疑问句2.This is his ruler 改为复数句 3.That is my brother改为复数句
4.This is my grandmother用grandparents改为复数形式 5.These are her brothers.改为否定句 6.Those are my books对my books提问.7.Is he your friend?做肯定回答 8.Dave and Anna are my friends改为一般疑问句