1.there is abookstore across from the school 改为否定句 2.there are some flowers on the tree 改疑问
问题描述：
1.there is abookstore across from the school 改为否定句 2.there are some flowers on the tree 改疑问
3.is there abaseball under the chair 作肯定回答
4.are there any trees around your house?作否定回答
5.our class has 60 students改为同意句
答
1.\x05There is not a bookstore across from the school (或者There is no bookstore across from the school)
2.\x05Are there any flowers on the tree?
3.\x05Yes,there is a baseball under the chair.
4.\x05No,there are not any trees around my house (或者No,there are no trees around my house
5.\x05There are 60 students in our class (或者60 students are in our class)