When I walked into the room, I was very nervous.

Beijing has many famous tourist attractions, such as the Imperial Palace, Tian'anmen Square, and the Lama Temple.

Central Park has a zoo and many other interesting places to visit, but sometimes it is too cold to visit in the winter

A good writer learns to create longer, more detailed sentences from simple ideas.

Some families do not have the extra time that pets require.

Although Bolívar’s name is not as well-known outside Latin America, many people there consider him the most important historical person.

Brazil and Chile are near each other, but these two South American countries are very different in geography, population, and language.

The students were bored in the class.

If I study well, I will pass the exam.

By studying well, I will pass the exam.