After talking Copenhagen yesterday, the secretary of state returning to Washington

Both Mr. and Mrs. Smith are explaining the children the rules of the game

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

The more  important theorem of all in plane geometry is the Pythagorean Theo

Hoover Dam in Nevada is a multi purpose structure that provides flood control, hydroelectric powerful , and drinking and irrigate water.

The team leader demanded from his team members a serious attitude wtih work, good team spirit, and they work hard.

Find out error in each sentence: The more we work together, the best we understand each other.

The singer was ______________ on the piano by her sister. 

What are common known as “lead” pencil are not lead, but rather mixture of graph, clay and wax

Prevented the soil from erosion, the trees are planted by the farmer a years before were which stopped the flood from reaching his house

Nancy said that she went to supermarket before coming home

The federal government recommends that xpectant women will not only refrain  from smoking but also avoid places where other people smoke

Find out error in each sentence: The oxygen content of Mars is not sufficient enough to support life, as far as I know. 

Since fireworks are dangerous, many countries have laws preventing busin to sell them.

The phrase "backed up"  has similar meaning to ____.

Before television became so popular , Americans used to entertain each other evening by playing games, saying stories, and singing songs.

_______ I think about my exam, ______ happy I feel. 

The Unita Mountains of north-eastern Utah are the only range of mountains North America that runs from East and West for entire length.

There exists more than 2,600 different varieties of palm trees, with varying owers, leaves, and fruits.

You pay about $50 per person and can having dinner and breakfast there .

– John: “You have a good voice! You sang so beautifully!” 

- Linda: “____________”