The Chinese ……………… paper. A.invented B.have invented C.had invented Answer and Feedback Answer:A Feedback:The simple past tense is the normal tense for talking about finished events in the past. do you want? view more test Xem thêm Share this post Some other questions you may be interested in. The greater the demand, … the price. This territory, an area … the size of Iceland, was bought by the Unites States. This cathedral enjoys the distinction … the largest medieval cathedral in the country. She said she didn’t like … . The first transistor was a small chip onto one surface of which two pointed wire contacts … side by side. She hasn’t begun working on her Ph.D. … working on her new project about energy. In the stringed instruments, the tones … by playing a bow across a set of strings. Water, … is also one of the most abundant compounds on earth. …, the nation’s capital remained in our city. People all over the world are starving … .
