1 . 赵小兰是美国历史上第一位被任命为总统内阁成员的亚裔女性。
Elaine Chao was____________Asian American woman________________a member of President’s Cabinet in American history．

2 . The boss has appointed Tom manager of the engineering department to take the place of George. (转换为被动形式)
Tom ________ manager of the engineering department to take the place of George.

3 . 山姆已经被指定代替乔治的位子,担当工程部的经理。
Sam has__________manager of the engineering department to take the place of George.