2017-2018学年人教版必修二Unit1 Section 2课时作业含解析 Ⅰ.选用合适的关系词填空 1．Is this the house __which/that__ you were born in thirty years ago? 2．That ginkgo tree (银杏树)， __whose__ branches are almost bare，is very old. 3．The opera singers are taking a break on the subway train， __where__ they are giving an attractive performance. 4．They spent last summer holiday in Guangzhou， __where__ they learnt a lot. 5．Israeli(以色列的) air force held air show the other day， __which__ was wonderful. 6．He couldn’t give us the reason __why/for_which__ he was absent from the meeting. 7． __As__I can be seen from his face，he must have been outside for a long time.