_ is known, John studies in_______ is considered the best school in the city.

Do you mind me opening the window —______ .It’s so cold outside.

More teens are smoking in Beijing, ______ the number of primary and middle school students picking up the habit has more than doubled from previous years.

Be quick, _____ we’ll miss the beginning of the fireworks display in the park

I ______ along the road when I saw PeterSo we stopped and had a chat