20.（ ）

(单选题)—What did he do in return for free ______ and food offered b (单选题)—Jack, we will play a basketball match against class 6 this (单选题)Many important inventions are the result of ______; for exam (单选题)Civil rights activist Fannie Lou Hamer’s statement, “I’m sic (单选题)Which of the following sentences does not include an indepen (单选题)Which of the following underlined parts is a predicative cla (单选题)All the following sentences indicates a subjunctive mood exc (单选题)Which of the following sentences indicates “ability”? (单选题)Which of the following italicized parts indicates a predicat (单选题)Which of the following sentences is correct?