Unit 10 Where did you go on vacation,Self check,I . Choose the correct answers. 1. -When _ Mr. Green _ to the town?-I think it _ last December. A. e; was B. did. come; isC. does. come; is D. does. come; was,Exercises,此题考查了动词的时态, 由答语中last December可知对话谈论的是过去的事, 因此要使用一般过去时,2. - _ you _ your key? - Yes. It was in my desk. A. Did; findB. Did; found C. Do; find D. Are; find 此题考查了实义动词一般过去时的疑问句,由答语中It was.可知问句是一般过去时,其谓语动词是find, 助动词用did,3. _ you busy last week? A . Are B. Was C. Were D. Do 由
