Ⅰ 单项选择1. I’ve won a holiday for two days to Florida. I ________ my mum.A. am taking B. have taken C. take D. will have taken2. With the help of high technology, more and more new things _______ in the past years.A. discovered B. have discovered C. had been discovered D. have been discove...

时间:2025-06-14 16:14栏目:中学教育