Question

You can’t believe how terrible the fire is __________ you see it with your own eyes.

A．though

B．because

C．unless

D．since

Answer 1

C

试题分析：句意：你不能相信火灾是多么的可怕除非_你亲眼看到它。Though虽然；because因为； unless 除非；since从。根据句意可知该选C。