The old farmer felt like _____ a big house very much.
—Must I take the medicine every day? —No, you _______.
—I have a stomachache. What should I do? —You _______ drink sweet water and _______ eat sweet food.
—May I watch TV, Mom? —I’m afraid you _______.
We don’t know how to prevent the flu. Shall we ask Doctor Wang Hai for______?
—Humans can’t live _______ air. —I agree with you.