第1个回答 2010-05-16
Some books of ours are in your bag.
第2个回答 2010-05-16
we left behind several books in your bag
第3个回答 2010-05-16
There are some books of ours in your school bag/bag.
第4个回答 2010-05-16
We have many books in your bag
第5个回答 2010-05-16
We have a few books in your bag