选择正确答案

-- What is he doing?

-- __________.

A. He is my father

B. He is playing with his train

C. He is Ok

选择没有语法错误的答语

--What's Mrs Wang buying in the supermarket?

--_______________

A. He is buying a big brown bear.

B. He is buying a pink long pencil.

C. He is buy a small yellow bag.

--Do you have a washroom in your school?

--______________.

A. He is in the washroom

B. It's on the third floor

C. Yes, we do