题目内容
16．Everyone is supposedto wear （wear）a seat belt in the car．分析 在车上每个人都应该系安全带．
解答 答案：to wear．根据Everyone is supposed--（wear）a seat belt in the car．可知这里考查了suppose的用法，它用于be supposed to do sth应该做某事．故填to wear．
点评 本题考查了动词不定式的用法．解答时注意：be supposed to do sth应该做某事．
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