Помогите пожалуйста, очень срочно!!!
Open the brackets:
1. Don’t worry. He (to speak) to you before he (to leave).
2. We (to know) each other since childhood.
3. This book (to give) to her 3 days ago.
4. These flowers (to smell) nice.
5. Money (not to buy) happiness.
6. Sam feels tired as he (to work) all morning.