Although caffeine is a moderately habit-forming drug, coffee is not regarded as harmfully to the average healthy adult.

In spite of my father is old , he gets up early and does morning exercise.

Paris is much more exciting as I expected.

A warning printed on a makeshift lifebuoy says: “This is not a life-saving device. Children should be accompany by their parents.”

Despite she was in her middle age, she looked very graceful and charming.

This apprentice has spent two weeks to work on that new machine.

The clerks who are happy to wait for their customer will get promoted soon.

After the police had tried unsuccessfully to determine to who the car belonged, they towed it to the station.

Sex's education is instituted to help the student understandthe process of maturation, to eliminate anxieties related to development, to learn values, and to prevent disease.

I’m not used to go to school late. I prefer punctuation.

She only had a twenty-dollars bill with her when she landed at Healthrow airport.

Although most species of small birds gather in groups at feeders provided by bird-watchers, the bright red cardinals usually appears alone or with its mate.

Women in many parts of the world have had lower status than men, which the extent of the gap between genders varies across cultures and times.

Manufacturers may use food additives for preserving, to color, or to flavor, or to fortify foods.

The developing of the submarine was hindered by the lack of a power source that could propel an underwater vessel.

Before went abroad, he had finished his English course at the English-speaking Center.

The teacher asked him why hadn’t he done his homework, but he said nothing.

By the time Robert will finish writing the first draft of his paper, most of the other students will have completed their final draft.

Two weeks are plenty of time to finish the assignment.

Although Nam worked very hard, but he didn’t pass the final exam.

Some species of bats are dormant each days and active every night.