The air is so ________ that the smoke is rising straight up.


  1. A.
    calm
  2. B.
    silent
  3. C.
    still
  4. D.
    quiet
C
考查形容詞義辨析。句譯為:天空無風(fēng),所以煙很直。still,形容詞,“無風(fēng)的,靜止的”;calm,形容詞,“冷靜的”;silent,形容詞,“沉默的”;quiet,形容詞,“安靜的”。
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