单元重难点题组训练题组训练一 discover ， find out 与 invent 辨析 Ⅰ.单项选择。 ( )1.When Jack got into the classroom，he surprisingly ________ that nobody was there.A. discovered B. invented C. memorized D. remembered( )2.—Who ________ the car，do you know?—I don't...

时间:2025-04-09 23:25栏目:高等教育