You can’t plain of being lonely you don’t make any effort to meet people.
A. until
B. when
C. once
D. though
网友回答
A. until
B. when
C. once
D. though
解析:B【命题立意】考查状语从句。
【解题思路】when意为“既然,考虑到”;until意为“直到……才”;once意为“一旦”;though意为“虽然”。句意为:既然你不努力去认识人,你就不能抱怨孤独。根据句意可知,答案为B项。