The heavy rain started suddenly. We stopped planting trees. (compound sentence)

The curtain was closed. The cast congratulated each other for their wonderful performance, (complex sentence)

Frank Water was a strong man. He could not lift the rock. The rock weighed over four hundred pounds. (compound — complex sentence)

The boy rushed out of the laboratory. He was badly frightened by the explosion. (sentence with a modifying phrase)

Scientists are not sure whether our weather is changing from the greenhouse effect. They are not sure whether it is changing from a cycle of nature either. (sentence with parallel structure)

The mayor called a press conference last week. She wanted to announce new programs for crime prevention and care for the homeless. (sentence with to opener)

The world appears to be growing smaller. World travel is so common. Many foreign customs have become familiar to us today, (long sentence)

Betty had worn glasses for fifteen years. She decided to get contact lenses. She would be able to see better. She would look more glamorous, (compound —complex sentence)

I finished the novel on the train which Mark had given me on my birthday.

We all hurried home after the picnic, it had started to rain.