Choose the correct answer to complete the sentence. "Twenty per cent of all the birds in the world ______ in the rainforest"

Ethics is the branch of philosophy that deals with the values of life in a coherent, systematic, and science manner.

Our tomatoes are ripen nicely, they’ll be ready to eat in about a week

The central purpose of management is for making every action or decision helping achieve a carefully chosen goal.

If one has a special medical condition such as diabetes, epilepsy, or allergy, it is advisable that they carry some kind of identification in order to avoid being given improper medication in an emergency.

Physiologically, the period of adolescence is marked by active growth, especially in the skeletal and muscular systems and in a certain

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

Lan never goes out at night,  _    ?

Above 80 percent of the laborers at the construction site are temporary workers.

Exercising well is as important to your health as sleep and eating correctly

The capital of the United States, originally New York City, was moved to Philadelphia where stayed until 1800.

The society was set up to ...... endangered species from extinction.

Too much water makes plants turning brown on the edges of their leaves.

The world oceans have risen on average of 6 inches over the past 100 years, which has been considered as an evidence that global warming has an effect.

To assure the safely of those workers who must handle radioactive materials, the employer should not leave them enter contaminated areas without protective clothing.

The girl who were injured in the accident is now in hospital

Although usual living on or under rocks or on coral reefs, marine snails have been observed in a great various of habitats

I wouldn’t have to take this course if my English ____ better. 

From archeological evidences, we know that Egyptians were highly organized and civilized. Moreover, they were skillful in using crafts.

There is nothing more annoying than you are interrupted when you are speaking

The weightlifter who allegedly took performance-enhancing drugs have been named today.