题目内容
Many people believe we are heading for environmental disaster _____ we basically change the way we live.
A. but B. although C. unless D. once
C
考查状语从句的连接词。句意:许多人认为我们正走向环境灾难除非我们从根本上改变我们的生活方式。
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题目内容
Many people believe we are heading for environmental disaster _____ we basically change the way we live.
A. but B. although C. unless D. once
C
考查状语从句的连接词。句意:许多人认为我们正走向环境灾难除非我们从根本上改变我们的生活方式。