问题
选择题
– Our holiday in Beijing cost a lot of money.
– Did it? Well, that doesn’t matter ___________ you enjoyed yourselves.
A. unless B. if C. while
答案
答案：B
题目分析：句意:在北京度假花了很多钱。是吗？哦，如果你们玩的开心那没关系。A. unless除非/如果不，B. if 如果，C. while当……时候。据题意AC不符合题意，故选B。