题目内容

He didn't leave the office ________ his boss came back.

A. when
B. until
C. if
D. as

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Generally, air will be heavily polluted ___________ there are factories.

A. what
B. that
C. which
D. where

I bellieve _________ he says, for he always keeps his word.

A. whatever
B. whenever
C. wherever
D. however

埃里克森将危机分为（）类型。

A. 发展危机与存在危机
B. 发展危机与情境危机
C. 情境危机与存在危机
D. 存在危机与目标危机

天灾、亲朋好友的突然离世、失恋等属于什么（）危机？

A. 发展危机
B. 情感危机
C. 情境危机