Question

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

Answer 1

A 

本題考查并列連詞。題干句意為：在學校，一些學生很活躍而一些卻很害羞，然而他們都可能彼此成為好朋友。根據句意選while，表示兩個分句中兩種情況的對比。