2017年秋外研版必修一Module4 Section Ⅱ课时作业含解析 Ⅰ.用所给单词的适当形式填空 1．Thousands of miles of good roads have_joined (join) towns and countries. 2．China has_made (make) great progress in science and technology. 3．All of you have_heard_of (hear of) this many times. 4．We have_been (be) good friends since our middle school days. 5．It has_been (be) five years since he came here. 6．We have_studied (study) English for six years. 7．I received (receive) his letter two days ago. 8．I haven’t_received (not receive) his letter, so I have to ring him up. 9．He will come as soon as he finishes (finish) the homework. 10．If you have_read (read) the book before I leave, please lend it to me. 11．They overestimate (高估) the importance of his occupation (occupy)． 12．The performer performed his tricks with professional (profession) skill. 13．The explorer organised (organization) an expedition to the North Pole in 1992. 14．I haven’t_received (not receive) his letter for a long time.