题目内容
You ________ be 18 years old before you are allowed to drive a car, and it’s also essential to get a driver’s license.
A. could B. may C. can D. have to
D
解析:考查情态动词。对“18岁可以开车”是一种客观要求,故用have to.注意情态动词must与have to的区别:must表示主观意愿,而have to则表示客观实在。
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