精选优质文档-倾情为你奉上There be 句型练习题（一）句型变换。1. There is a pencil on the desk.（改为一般疑问句）_ _ a pencil on the desk?2. There is a pencil on the desk.（改为否定句） _ _ _ _ on the desk.3. There is a pear tree.（用some改为复数句子） There _ _ _ _.4. There are some oranges on the table.（改为单数句子）There _ _ orange on the table.5. There are some boys in the room.（改为一般疑问句） _ there _ boys in the room?
