_________，I should not have wasted my time trying to explaiil matters to you．
举一反三
- Suppose you did not finish your homework in time and you need to text a message to your teacher to express how regretful you are. Which of the following statements should NOT be included in your message to the teacher? A: I should have paid more attention to my study. B: I shouldn't have forgotten my homework. C: You should have given me more time. D: I promise that I will finish my homework in time later on.
- You should have accepted that. I am ____________ you.
- --I'm going to London by plane the day after tomorrow. --_______.( ) A: Did you have a good time B: Are you enjoying it C: It's my pleasure to meet you. D: I wish I were going with you.
- At the moment, I ______ (do) my homework. So, I do not have time to talk to you.
- You failed your math exam again. You ______ too much time on football. A: shouldn’t have wasted B: mustn’t have wasted C: couldn’t have wasted D: needn’t have wasted