Subject verb agreement and Gerund

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Across
  1. 2. expression ______ is set off by commas, dash and bracket
  2. 5. neither the students nor the teacher knows/know an answer
Down
  1. 1. A group of bird
  2. 3. he is good at reading. Reading here functions as ______
  3. 4. When life gives you tangerines are a good Korean drama. use correct form of verb.