You must tell him where you are going_______ when you will be back

 

The invention of the Silicon chip in the 1960s has revolutionized the computer industry

Could you mind telling me the way to the nearest restaurant?

The very first night I was in Australia, I couldn’t have slept until early in the morning

I thought this book was rather dull at the first, but I’ve changed my mind.

In spite modern medical technology, many diseases caused by viruses are still not curable.

Allen’s not having finished his thesis did not discourage him from applying for other degree program

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

Ocean currents that help transfer heat from the equator to the poles, thereby creating a more balanced global environment.

They are going to have to leave soon, and so do we.

Chicago’s Sears Tower, now the taller building in the world, rises 1,522 feet from the ground to the top of its antenna.

Contrary to popular belief, bananas are grown on the soft stalk of a leafy plant and not on trees with wood trunks

They are known that colds can be avoided by eating the right kind of food and taking exercise regularly.

The Dave Brubek Quartet, one of the most popular jazz bands of the 1950s, had a particularly loyal following on campuses college.

Often a headache is caused by the contraction of one of the muscle group that cover the skull, thus causing spasm and pain.

One of the most beautiful botanical gardens in the United States is the wildly and lovely Magnolia Gardens near Charleston, South Carolina

As the numeral of older people increases, services for the elderly will soon represent one of the fastest-growing areas of employment.

The temperature drops_______ the sun sets.

The pioneers raised com as their chief crop because they kept well in any season and could be used in many ways.

Many heavy work that was once done by hand can now be done more easily with the help of compressed air

Many of the population in the rural areas is composed of manual workers.