21.（ ）

(单选题)All _____ done now. (单选题)—In the car accident happening in front of our school gate, (单选题)We stayed in a village where time has stood ______. (单选题)Neither exporting mobile phones nor ______. (单选题)Because of the heavy snowstorm we have to put off the visit (单选题)She is obsessed with misery and anger, for all her endeavors (单选题)According to Aristotle, these are the three differences whic (单选题)Tell you what, let’s stay here ______ day. (单选题)It’s hard to find a good business partner. Eventually they f (单选题)He always puts his students ______ everything.