what's that?(those)、This is a dog.（these）、He's a teacher.（they）、is this a new bookwhat's that?(those)、This is a dog.（these）、He's a teacher.（they）、is this a new book（these）改复数 括号里的是提示

what's that?(those)、This is a dog.（these）、He's a teacher.（they）、is this a new bookwhat's that?(those)、This is a dog.（these）、He's a teacher.（they）、is this a new book（these）改复数 括号里的是提示
what's that?(those)、This is a dog.（these）、He's a teacher.（they）、is this a new book
what's that?(those)、This is a dog.（these）、He's a teacher.（they）、is this a new book（these）改复数 括号里的是提示

what's that?(those)、This is a dog.（these）、He's a teacher.（they）、is this a new bookwhat's that?(those)、This is a dog.（these）、He's a teacher.（they）、is this a new book（these）改复数 括号里的是提示
1、What's that?(those)
What are those?那些是什么?
2、This is a dog.（these）
These are dogs.这些是狗.
3、He's a teacher.（they）
They are teachers.他们是老师.
4、Is this a new book?（these）
Are these new books?这些是新书吗?

what are those? these are dogs. they are teachers. are those new books