2017-2018学年人教版必修二Unit3 Section 2巩固提升含解析 Ⅰ.用所给词的适当的时态、语态形式填空 1．They __have sold__(sell) ten apartments in the past one hour. 2．Prices __have fallen__(fall) sharply over the past six months. 3．He __has__already __been asked__(ask) to help you. 4．The company __has made__(make) its workers work hard recently. 5．A notice __has__ already __been put up__ (put up) on the wall. 6．Since we realized that we should study hard，our time __has been made__(make) full use of. 7．These streets __haven’t been swept__(not sweep) for two days. 8．How long __has__the book __been kept__ (keep) ? 9．This old photo __was taken__(take) ten years ago. 10．These goods __haven’t been shipped__(not ship) abroad yet.