.—Must I give the pen to the manager ?—No, you may give it to________you think is on duty in the office .
It’s not easy to change habits, ______ with awareness and self-control, it is possible.
- Would you like a glass of wine? -. I don't drink.
I felt very tired when I got home, and Istraight to bed.
The airport _______ next year will help promote tourism in this area.
Nowadays people are more concerned about the environment _______ they live.