______ the problem, Tom has tried many different ways.
—Where is Jack? — In the sitting room. He _______ TV with his brother.
He will give me a message when he ________ arrive there.
— Must I finish my homework now?— No, you ________. You can go home now.
— do you go to visit your grandparents? — Once a week.
—Linda, I called you this morning, but nobody answered the phone. —I'm sorry. I a picnic with my family then.