_______ you start eating in a healthier way, weight control will become much easier.

—What upsets him?—________ his computer is out of order.

______ is even more important is that the earth cooled down, water began to appear on its surface.

________ the Internet is bridging the distance between people, it may also be breaking some families or will cause other family problems.

 … Will you go to the meeting for their discussion? …  No, ______ invited. I don’t feel like getting involved in their business.