-To keep safe, everyone_______ wear a seat belt(安全带) in a car.A. is suppose B. are supposed to C. is supposed to D are supposed
—When did you become a volunteer? —I________in this group since 2008.
Basketball is so popular a game that________people play it for fun and exercise.
—I have bought a nice dress. —Where________you________it?
He wants to________you on the question of how to learn English well tomorrow.
Have you ever been to Shanghai________?