【評論主題】9.You ______ bring an umbrella; it could rain tonight.(A)make sure (B)figure out (C)give up (D)had b

【評論內容】make sure + of sth / to V

【評論主題】Showing appreciation for every kindness is the unwritten rule ________ all over the world regardless

【評論內容】這裡的observed應被譯作"受遵守的"、"被奉行的"