I arrived early for the meeting so I was（）my thumbs for half an hour.
A、turning
B、touching
C、twisting
D、twiddling
【正确答案】：D
【题目解析】：本题考查动词的辨析。句意：开会时我早到了半个小时，所以我无所事事地耗了半个小时 。turn v. 转动，旋转 touch v. 触碰
twist v. 弯曲，扭曲 例：Her face twisted in anger. 她气得脸变形了。
twiddle v. 摆弄 例：twiddle your thumbs （等待之际）无所事事
I sat twiddling my thumbs waiting for him to finish using the phone. 我坐在那里无聊地摆弄着我的拇指，等着他用完电话。
