2016-2017学年高中英语（外研版）必修1：Unit 4 Section Ⅱ Grammar课文训练含解析 基础训练 Ⅰ.用所给动词的正确时态和语态填空 1. In the past few years, great changes ________(take) place in my hometown. 2. When I first ________(watch) this film, but I ________(change) my mind until now. 3．In fact, I ________(be)to London once. I ________(visit) the city in 2006. 4．His novel ________(republish) several times since it ________(come) out three years ago. 5．Tell me the answer, please. I ________(puzzle) over this question for weeks. 6. His keys ________(lose)when he went shopping. He ________(not find) them yet.