【题目】Believe it or not, it is ________________ that causes your illness.
A.because of your being overweightB.because you are overweight
C.you are so overweightD.your being overweight
在线课程【答案】D
【解析】
考查动名词的被强调用法。句意：不管你信不信，肥胖导致了你的疾病。分析句子结构可知，本句为强调句型，强调的是主语，四项之中只有动名词可充当名词性成分，故D项正确。