—Does Mary know ____?—Yes, she knows ____.
—What were you doing at this time yesterday? —We _______ in the classroom.
—Would you mind passing me today’s newspaper? —_______
—Do you often help your cousin with his English? —No. He learns English _______.
The girl is only two years old. She is _______ to go to school.
My sister is only three years old. She can’t take care of _______.