一、单项选择（共15小题，每小题1分，满分15分） 21．dan brown , _____author of the da vinci code，is _____very famous american writer. a. a； the b. the； the c. the； a da a； a 22．you look frozen．sit down by the fire and i you some hot tea． a．make b．was making c．made d．will make 23．she seems to prefer american tv shows to talking to me． a．to watch b．to be watching c．watching d．having watched
