随堂演练
及时体验 巩固提升
Ⅰ.单句语法填空(不多于3个单词)
1．________________ (wonder) what would happen, none of them could find a way out.
答案 Wondering
2．________________ (finish) his lesson, the teacher asked whether anyone wished to ask a question.
答案 Having finished
3．________________ (show) several times，he still doesn't know how to do it properly.
答案 Having been shown
4．The fire lasted nearly three hours, ________________ (leave) nothing valuable.
答案 leaving
5．________________ (ask) to put on a performance, she refused.
答案 Being asked
6．________________ (open) the door, I found nobody in.
