Can I sit under a tree reading quietly什么意思?

Can I sit under a tree reading quietly什么意思? Jerry________（sit)under a tree now. I was surprised to find him _______(sit) under a tree. I can sit under my umbrella.是什么意思? I ____(sit) under the tree.空里怎么填, i am ( )a book under the tree 括号里填finding还是reading? I saw Mary.Mary was reading under a big tree.合并为一句 A boy is ____ (sit) under the tree.填空! There is some rubbish under the tree.We can't sit under the the two girls are reading under a tree? They are sitting under a tree reading books. there is a girl reading English under the tree