Do all question 1to6

Dear student, 

1. Leaving 
2. Hunting
3. Reading
4. Traveling
5. Understanding
6. Brushing

Verb complements are added to the sentence to provide more information about the object. 
In the first part,  business is not is the verb complement. Please try to attempt this part on your own for enhancing your skills. If you have any query/ feedback feel free to ask. 

Regards