问题
选择题
At school, some students are active ______ some are shy, yet they can be good friends with one another.
A.while
B.although
C.so
D.as
答案
A
本题考查并列连词。题干句意为:在学校,一些学生很活跃而一些却很害羞,然而他们都可能彼此成为好朋友。根据句意选while,表示两个分句中两种情况的对比。