题目内容
19.Not drinking enough water ______ lead to headache and poor physical performance.( )A. | can | B. | must | C. | should | D. | need |
分析 句意:没有喝足够的水可能会导致头疼和较差的体能表现.
解答 答案A."can"能够,可能,有时会;"must"必须,肯定,偏偏;"should"应该,竟然;"need"需要.根据句意,没有喝足够的水"可能"会导致头疼和较差的体能表现.表示可能性的推测,故选A.
点评 本题考查情态动词,要掌握情态动词的用法并结合具体的语境选择出正确的选项.
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