【評論主題】36. It is imperative that he ________ the risks of the actions he is going to take.(A) knew (B) know

【評論內容】看到imperative，要提醒自己這是subjunctive用法，意即後面展開的子句裡的主詞要用原形（省略掉should）

【評論主題】36. It is imperative that he ________ the risks of the actions he is going to take.(A) knew (B) know

【評論內容】看到imperative，要提醒自己這是subjunctive用法，意即後面展開的子句裡的主詞要用原形（省略掉should）