2. 外语
  3. I know a number of occasions ______ people died from water pollution.

I know a number of occasions ______ people died from water pollution.

admin2007-10-13  83
问题 I know a number of occasions ______ people died from water pollution.
选项 A、how
B、as
C、when
D、where
答案C
解析 本题测试限定性定语从句。when引导定语从句，修饰先行词occasions，when在从句中做状语。句子的意思是：“我知道有很多时候人们死于水污染。”
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成人本科学位英语

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