_______ an object from the surface of the Earth, _______ it weighs.

Studying abroad can be a meaningful and rewarding experience, which gives students the chance to live overseas, integrating themselves into a totally foreign culture, meet

John ______ economics at Oxford University since he _______ to England six months ago.

_______ anything stranger.

The World Health Organization (WHO) is a specialized agency of the United Nations,  that acts as a coordinating authority on international public health.

Do you know his address _______ telephone number?

They have ever advised _______ the hotel for reservation.

The volunteers planted these trees in the park last week.

“_______,” the mother warned her sons.

Future is a time when most people assume that everything will keep getting better and future generations will enjoy life in a more better world.

Do you know that reading can keep your mind acted and engaged well when you get old?

Education is recognized as an essential need for achieving equal in most walks of life.

If it _______ an hour ago, the streets _______ wet now.

Nowadays, most students wear _______.

By the time Mary saw the job advertised, it was already too late for her to apply.

The particles are _______ they burn up before they reach earth.