---Have you seen ____ pen ? I left it here this morning .---Is it _____ black one ? I think I saw it somewhere.
—Would you mind _______?—Not at all.
—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______?