单选题 Alice, you must wear a uniform because it builds school （）.

单选题 （） meaningful day! We volunteered to clean up our city park.

单选题 —Helen, I didn’t see you in the classroom at five yesterday afternoon.—Oh, I （） singing for the graduation ceremony at that time.

单选题 —Maria, you should believe in （）. That’s the secret of success.—OK, I will.

单选题 Chinese （） by more and more people in the world these days.

单选题 （） the Spring Festival, lanterns can be seen almost everywhere in my hometown.

单选题 —Which kind of movies do you prefer, action movies or comedies?—I like action movies（）.

单选题 —Whose dictionary is this?—It（） be Sarah’s. Look! Her name is on it.

单选题 The students worked in groups to （） the difficult problem in the math class.