题目

如图，在△ABC中，∠A=30°，∠B=50°，延长BC到D，则∠ACD= °． 答案：80---Has your sister finished watching the new film_____? ---Yes, she has finished it ________.A. yet; yet B. already; already C. already; yet D. yet; already D 【解析】试题分析：句意：你姐姐看完这部新电影了吗？是的，她已经看完了。Yet用在否定或疑问句中，already用在肯定句中。故选D。