Add question tags to the following sentences: 15. Donald didn't forget your birthday.

16. I don't need your help..

17. They are playing chess,

18. Andy can't speak Italian,.

19. Brian is American

20. You don't know Betty.

21. It's an exciting job,

22. He won't send me a postcard

23. We are in front of his house,

24. Lola lost her glasses yesterday,

25. You've got a polaroid camera

26. I'm late,

27. Bob's absent,

28. George doesn't drink tea,

29. We're happy.

30. He comes from Italy.​

He tried to draw a line. He didn't want to use that spade. It is hard to set a matter. He ventured to deliver a few apcels. You have to protect them from rust. It's good to be an adult. It was difficult to compile. To invent something new is not an easy task. To win a gold medal one has to work hard. He was ordered to design a new model. It was hard to solve the problem. It's unwise to publish this information. They tried to make a fool of him. They had to provide all the food. They had to find a new way out. You have to take more sugar. You have to keep calm.  They liked to chat on the net. To have so many debts is depressing.

During our Maths class we usually draw different lines
I never use my eraser
Let's set the limit
A postman delivers letters and newspapers
I want to protect our nature from destruction
I want to be famous
To compile means to compose
An inventor always invents something new
Our team wants to win the game
It's easy to design a project
I can't solve this problem
We usually publish our articles in this magazine
I can't make a mistake
It provides a good example
It's necessary to find my keys
You can take your dog for a walk
I always try to keep fit
I like to chat with friends
I have many questions.