题目内容
17.I'm so hungry now.I ______ since breakfast.( )| A. | won't eat | B. | haven't eaten | C. | didn't eat | D. | don't eat |
分析 我现在是如此的饿.自从早饭以来我就没有吃东西.
解答 答案:B.
since breakfast自从早饭以来,表示某个动作从过去某个时间开始,一直持续到现在,这个短语通常用于用于现在完成时;现在完成时态的构成:助动词have/has+过去分词,否定式为:助动词have/has+not+过去分词.根据主语I,所以应该用haven't eaten,故选B.
点评 本题考查现在完成时,可以从时间状语since breakfast得出答案.
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