A giant of a man was standing in the doorway. His face was almost pletely hidden by a long and untidy hair and a wild beard, but you ______ make out his eyes, shining like black beetles under all the hair.A.mightB.couldC.shouldD.would
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B解析试题分析：这里表示但是你能够辨认出他的眼睛，在头发下像黑色的甲壳虫一样闪闪发光。表示过去的能力，用could。考点：情态动词的考查
点评：情态动词有can (could), may (might), must, have to, shall (should, will (would), dare (dared), need (needed), ought to等。情态动词无人称和数的变化；不能单独使用，必须与其后的动词原形构成谓语。