—Dave, it’s dangerous to swim here. Look at the sign.
—Oh, I _______ it. Thank you.
A．didn't noticeB．won't noticeC．hadn't noticedD．don't notice
A

試題分析：句意：大衛(wèi)，在這游泳危險，看標志。哦，我沒注意到，謝謝你。didn't notice一般過去時，won't notice 一般將來時，hadn't noticed過去完成時， don't notice一般現(xiàn)在時。根據(jù)語境可知是在這兒是因為之前沒有注意到標志，為一般過去時，故選A.
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