把下列各句变成复数形式(1)I am a student.(2)This is my frind (3)She is a coustoms office(海关人员）(4)My case is broun(棕色）(5)What colour is her hat?(6)Is this your blouse?(7)Here is my possport.(8)Whose shirt is this?(9)It is an English car.(10)He is an engineer(工程师）

1.we are students
2.these are my friends
3.they are customs officers
4.my cases are brown
5.what colour are her hats
6.are these your blouses?
7.here are my passports
8.whose shirts are these?
9.they are Egnlish cars
10.they are engineers

1)I am a student.
We are students.
(2)This is my frind
These are our friends.
(3)She is a coustoms office(海关人员）
They are coustoms offices.
(4)My case is broun(棕色）
Our cases are brown.
(5)What colour is her hat?
What colour are their hats?
(6)Is this your blouse?
Are these your blouses?
(7)Here is my possport.
Here are our possports.
(8)Whose shirt is this?
Whose shirts are these?
(9)It is an English car.
They are English cars.
(10)He is an engineer(工程师）
They are engineers.

(1)I am a student.
We are students.
(2)This is my frind
These are our friends.
(3)She is a coustoms office(海关人员）
They are coustoms offices.
(4)My case is broun(棕色）
Our cases are brown.
(5)What colour is her hat?
What colour are their hats?
(6)Is this your blouse?
Are these your blouses?
(7)Here is my possport.
Here are our possports.
(8)Whose shirt is this?
Whose shirts are these?
(9)It is an English car.
They are English cars.
(10)He is an engineer(工程师）
They are engineers.