If you practice ________ English, you must keep ________ it.


  1. A.
    writing; doing
  2. B.
    writing; to do
  3. C.
    to write; doing
  4. D.
    to write; to do
A
解析：practice和keep之后都要跟動(dòng)名詞作賓語(yǔ)。選A。
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