--- We want to sit at the table near the window.
--- I am sorry, but it already.
A. took
B. takes
C. has been taken
D. is taking
网友回答
A. took
B. takes
(答案→)C. has been taken
D. is taking
解析：考查时态。本题的关键词是already已经，该词经常与现在完成时连用；句意：—我们想坐在靠近窗户的那个桌子的旁边。—对不起。那张桌子已经被人定了。现在完成时表示过去发生的事情对现在的影响，故C正确。