6.3 动名词、不定式、分词练习 
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 
4.There are many kinds of metals ______. 
A. each has its special properties   B. one has its special properties 
C. each having its special properties  D. having its special properties 
5.It’s pay-day, and they’re waiting ______. 
A. for paying  B. to be paid   C. to be paying   D. to have paid 
6._______ trouble, I’m going to forget the whole affair. 
A. Then rather cause  B. Rather causing 
C. Rather than cause  D. Rather than caused