A:can be
B:must have bee
C:might have bee
D:should be
①少数民族地区丰富的资源也为全国各民族所共享,例如西气东输、西电东送
②少数民族人民舍弃了自己的语言文字、风俗习惯、宗教信仰
③在国家危难的时刻,少数民族人民挺身而出
④少数民族地区的一些明星企业繁荣了当地的经济,也解决了部分就业问题
Before the sales start, I make a list of ______ my kids will need for the coming season.
—Did you have a good time?
—It couldn't be worse. We were held up on the expressway for three hours. On the way back, we found the car got a f____ tyre, and the spare was, too.