题目内容
---You look scared. What happened?
---Well , I ______ along the street _______ the UFO landed.
- A.was walking ; while
- B.is walking ; when
- C.was walking ; when
- D.is walking ; while
C
此题重点考查when和while引导的时间状语从句的基本区别。When引导的时间状语从句常用一般时态,有时也用进行时态;while引导的时间状语从句常用进行时态。
此题重点考查when和while引导的时间状语从句的基本区别。When引导的时间状语从句常用一般时态,有时也用进行时态;while引导的时间状语从句常用进行时态。
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