问题
选择题
_____ the girl was too selfish and never thought of others, she wasn’t getting on well with her classmates.
A．Though
B．Unless
C．Since
D．Until
答案
答案：C
题目分析：考查连词：A. Though虽然，B. Unless除非，C. Since自从，既然，D. Until直到，句意：既然这个女孩太自私了，从不想到别人，她和同学相处不好。选C。