He had so a difficult exercise that he couldn’t do it

Lassen National Park, the situation of a dormant volcano, is one of the most beautiful but least visited parks in the western United States

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

In many areas of the world, people need clothing for protection the weather.

If the airplane ticket wasn’t expensive, I could fly to Singapore for my holidays.

The woman of whom red car is parked in front of the bank is a famous popstar.

Under any circumstances will late arrivals be admitted to the theatre before the interval

In the 1800’s store owners sold everything from a needle to a plow, trust  everyone, and never took inventory.

All the staff in Tam’s film are expected to do some overtime, if the need rises.

Science  and technology are part of the knowledges of educated people

In about , experimental psychologists have devoted more research to learning than to any other topic

When scientists discovered how soap works, it became possible to do synthetic detergents out of Petroleum.

Located in Canada, the Columbia Ice field covers area of 120 square miles and is 3,30 feet thick in some places.

Find the mistake: How much main religions exist in the ASEAN countries?

It is a common knowledge that Douglas intends to retire at the end of the season

When contented and occasionally when hunger, cats frequently make a purring sound.

After analysing the steep rise in profits according to your report, it was convinced that your analyses were correct.

Choose the best option to complete the sentences: It's just a _______ of the bigger river, but called by a different name.

He was so lazy that he never washed his clothes by himself.

Choose one word or phrase marked A, B, C, or D that best complete the preceding sentence:

__________she's got an English name, she is in fact Vietnamese.

Mark the letter A, B, C, or D to indicate the underlined part that needs correcting in each of the following questions.

There are lots of amused ways to volunteer in the arts such as teaching, designing, and assisting with a variety of arts and crafts.