单选题 I've made new friends and am ...... at college. I think I'm enjoying being a college student.

单选题 "What in the world have you done?" ...... my high school classmate, when he saw me gaining a lot of weight one year after graduation.

单选题 Anyone who wants to complain about unfair treatment must ...... a written report to the committee.

单选题 Encryption should be used when a secret message is ...... online.

单选题 A recent study shows that traffic pollution in cities is becoming a ...... to health.

单选题 I love swimming because it gives me a sense of ...... calm from inside out.

单选题 Would you like that picture? Don't ...... to say no if you'd rather not.

单选题 The local hospital has ...... a campaign to raise money for new medical equipment.

单选题 Today's assignment is to go to the library and ...... more about what happened to Jews during World War II