巩固练习
1. I was ______ work last week, but I changed my mind.
a. to start b. to have started c. to be starting d. to have been starting
2. I intended ______ the matter with you, but I had some guests hen.
a. discuss b. discussing c. having discussed d. to have discussed
3. Don’t let me catch you ______.
a. do that again b. to do that again c. doing that again d. done that again