题目内容
—There are so many swimmers swimming in the swimming pool.
—Yes, and sixty percent _ children.
A. is B. are C. was D. were
B 【解析】句意:——在游泳池里有那么多游泳者正在游泳。——是的,而且百分之六十是孩子。根据谓语are可知此处用一般现在时,故排除CD两项。此处的sixty percent代指的是百分之六十的游泳者,故谓语用复数形式,故选B。
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