помогите пожалуйста1. The company succeeded in ........a profit. a) to make

Помогите пожалуйста
1. The company succeeded in ........a profit.
a) to make b) making
2. I regret.........so much money last week.
a) spending b) to spend
3. The buyers want....... our terms of payment.
a) knowing b) to know
4. It's obvious he's only interested in.......money.
a) to make b) making

5. We should........ the software before giving it to users.
a) testing b) test
6. The agent promised .......me as soon as the new product became available.
a) to call b) calling