My father isn’t in good health now. I think he should pay attention____ exercise.
—I want to know the day after tomorrow?—Ask Jim. He must know.
If he , I will let you know. He also wants to see you.
—Would you like to go hiking with us?—Sorry. My grandmother is ill. I'll go to her.
—What did the teacher say?—The teacher told us at the Capital Museum on time.
—Is that Jack speaking?—No. He isn't in right now. He to the cinema.