He said that he has done his homework since 7 o'clock.

Air pollution, together with littering, are causing many problems in our large, industrial cities today.

Mrs. Stevens, along with her cousins from New Mexico, are planning to attend the festivities.

Many teachers have devoted their lives to teaching therefore teaching is not a well-paid job.

By the time the police come the robber had run away.

Today the number of people enjoying winter sports are almost double that of twenty years ago.

Dresses, skirts, shoes and children’s clothing are advertised at great reduced prices this week