You ___ drink wine before driving, or the police will take your license away.

If the government takes measures to enrich senior citizens’ social and spiritual life, it ____ help develop a truly harmonious society.

—Must I take much medicine every day?—No, you ________.

J K Rowling jumps farther than ______ in her class.

—Must I pay for the bill now, boss?—No, you __________ pay for it after the meal.