Jack felt unhappy as they all went outing ____ him

Jack felt unhappy as they all went outing ____ him

A.except

B.but

C.without

D.besides

答案及解析： C

本题主要考查介词的用法区别。根据句子中的felt unhappy可知，句子中表示一种心理状态，于是，正确答案为C。