1 Your bag is in our classroom.
2 Their cars are under the tree,where's ours?
3 Please ask her.
4 Your shoes are very small,his are very big.
5 These are our pictures,theirs are on the wall.
6 Is it his hat?--No,his is black.(到底是黑色还是百色?!)
7 There're 20 people in her family.
8 Your picture is nice and so is hers.
9 Is this your doggy?--Yes,its eyes are very bright.
10 I don't know them.