问题
选择题
To pay to see that movie seems foolish ________ you can see it on television for free.
A．before
B．though
C．when
D．once
答案
答案：C
题目分析：此处when意为：既然。before 在……之前；though虽然； once一旦。句意：既然你能在电视上免费看那部电影，你花钱看那部电影似乎很愚蠢。根据句意选C。