大学英语基英课的PPT
Language Structure
See the following sentences and pay attention to the grammar rules they use:
Unit 1
1. I have been peeling and cutting onions. (finished action) 2. I was queueing for the cinema yesterday when I saw a car accident. 3. When I got to the cinema, the film had been showing for about ten minutes. 4. I was wondering if I might ask you a small favour.