You can’t complain of being lonelyyou don’t make any effort to meet people.A. untilB. when

问题补充：

You can’t complain of being lonelyyou don’t make any effort to meet people.

A. until

B. when

C. once

D. though

答案：

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。