The two kilograms of drugs which the police have seized is only the tip of the iceberg. They fear that far more are being smuggled and distributed.

It has been found that the length of light or dark periods influence certain activities of flowering plants

While the sun is the major source of ultraviolet rays, it is not the source only

Please don’t parking in those spaces that have signs reserving them for the handicapped

If we come home on time, our step-mother will be angry.

We really enjoyed the children’s imaginative and excited play last Saturday.

Harry has been admitted to ..........School of Medicine at .......... Midwestern university. 

Most Polar seals retreat to open water during the winter, but a few types have learn to survive on and under the ice all year round.

He understands …….... French, but he speaks it badly. 

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.

Choose the best option:

The area is roped off because the water is seriously polluted.

The basic elements of public-opinion research are interviewers, questionnaires, tabulating equipment, and to sample population

If you make a five-days trip across the Atlantic Ocean, your ship enters a different time zone everyday.

It is necessary that the director will sign all the copies, not just the top one

Choose the correct answer to complete the sentence. "In the past, a lot of countries ______ having contributed to global warming"

Industrialist Henry Ford introduced assembly-line techniques into the manufactures of motor vehicles.

Wealthy weapeople have always desired and wear precious stones because their beauty is lasting.

Choose the correct answer to complete the sentence. "Deforestation is one of the _____ environmental threats to the ecological balance in the world"

It is believed that the more frequent you exercise, the greater physical endurance you will have

Choose the correct answer to complete the sentence. "Numerous catastrophic consequences result ______ climate change."

Designers of athletic footwear finely tune each category of shoes to its particularly activity by studying human motion and physiology.