They ......................................... the grains into powder. A.grinded B.grounded C.ground Answer and Feedback Answer:C Feedback:Ground is the past simple of grind. do you want? view more test Xem thêm Share this post Some other questions you may be interested in. Select the correct sentence: Select the correct sentence: He is … the newspaper now. We are … eggs for breakfast today. They are … TV now. We are … to the store. They are … for a test right now. He … a newspaper this morning. We … pizza last night. He … the dishes when the phone rang.