Question

【题目】—May I go to the zoo with you next Sunday?
—No, you can't, you have a ticket. I have only one ticket.
A.if
B.until
C.or
D.unless

Answer 1

【答案】D
【解析】句意：—下周日，我可以和你一起去动物园吗？—你，你不能，除非你有票，我只有一张。A. if如果；B. until直到；C. or或则；要不然；D. unless除非。根据题意，故选D。