Question

【题目】Drivers ____wear seat belts(安全带) while their cars are running on the road.

A. need B. can C. may D. must

Answer 1

【答案】D

【解析】

试题分析：句意：当车在路上行驶时，司机必须系上安全带。A. need需要；B. can 能够，可以；C. may可以；D. must必须。出于安全考虑，司机必须系上安全带。故答案为D。