Question

To pay to see that movie seems foolish ________ you can see it on television for free.

A．before

B．though

C．when

D．once

Answer 1

C

解析试题分析：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。
考点：考查状语从句的连接词。