英语 四年级 填空题 较难

现在进行时be+doing结构 — 英语填空题

湘少版·英语 Unit 8 He is cleaning the window AI 三重审校通过

题目
根据中文提示,用所给动词的正确形式填空。1. Listen! The girls ______ (sing) in the classroom. 2. Tom isn't playing; he ______ (do) his homework now. 3. Look at Grandma and Grandpa. They ______ (watch) TV in the living room.