Chemical engineering is based on the principles of physic, chemists, and mathematics.

Before dinosaurs became extinct, plant life is very different on Earth

Before television became so popular , Americans used to entertain each other evening by playing games, saying stories, and singing songs.

Harry and Mai are talking about their plan for the weekend.
Harry: “Do you feel like going to the cinema this weekend?”
Mai: “_______”

Lawrence Robert Klein received the 1980 Nobel Prize economics for pioneering the useful of computers to forecast economic activities

You wanted me to tell you about what I was doing here and how was my life.

The ancestors of some French Americans originally came to The United State because of French Revolution, that broke out in 1789.

Choose the correct answer to complete the sentence. "Being influenced _____ Chinese, European, Indian, and Malay cultures, Indonesia is a widely diverse nation with over 300 ethnic groups."

Choose the correct answer to complete the sentence. "He doesn't allow people _______ in bars"

Others believe that both sides would jump at the chance to resume negotiations without delaying .

The rock formations in the Valley in Nevada has been worn into many strange shapes by the action of wind and water

If it will rain this afternoon, we will have cancel our picnic.

The nurse has to  ....... the patients at the midnight.

The giant panda eats chiefly mainly bamboo shoots, though it also eats some other plants and occasionally feeds on and small rodents.

The common field mouse is about four inches long and has three – inched tail

While searching for the wreckage of a unidentified aircraft, the Coast Guard encountering severe squalls at sea 

Nocturnal reatures, raccoons fora primarily at night and spend their days rest in their den

For thousands of years, people have used some kind of refrigeration cooling verages and preserve edibles 

Incriminately dumping of waste materi and inadequate ewage treatment are two serious causes of environmental pollution.

Some methods to prevent soil erosion are plowing parallel with the slopes of hills, to plant on unproductive land, and rotating crops.

Materials that of clay are among the ancient manufactured articles and have playedvital role in human civilization.