问题
选择题
Everyone is supposed ____ a seat belt in the car.
A．wearing
B．to wear
C．to be worn
D．wears
答案
答案：B
考查固定句型。be supposed to do sth.“应该做某事”。句意“每个人都应该系安全带。”故选B。
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Everyone is supposed ____ a seat belt in the car.
A．wearing
B．to wear
C．to be worn
D．wears
答案：B
考查固定句型。be supposed to do sth.“应该做某事”。句意“每个人都应该系安全带。”故选B。