根据汉语提示把下面的句子译成英语.
6.我的妈妈正在邮寄一封信.
My mother ( ) ( ) a letter.
7.失物招领处在哪里?
Where is the ( ) ( ) (
8.她正在寻找她的英语书.
She is ( ) ( ) her English book .
9.你还想买点别的东西吗?
( ) ( ) do you want to buy?
10.在动物园你能看见一些老虎.
You can see ( ) ( ) tigers in the zoo.