American pioneers did water systems from logs with holes bored through their centers

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

Nobody bothered with telling me that the school had decided to have a special holiday on Friday

In his famous domes, architecture Buckminster Fuller utilized thousands of simple equilateral triangles linked together.

There is evidence that the caribou originated into North America and crossed over all land bridge into Asia and evolved into the Old World’s reindeer.

The central purpose of management is for making every action or decision helping achieve a carefully chosen goal.

The number of time he spends gardening is increasing every day.

A dancing is the oldest and liveliest of the arts.

Choose the best option:

She is a famous ___. She tries her best to protect rare animals from extinction.

Choose the best option:

The problems of pollution call for a prompt ___ from the government.

Although usual living on or under rocks or on coral reefs, marine snails have been observed in a great various of habitats

Before bridges were built, all transport across major rivers in the area were by ferryboat.

One of the four underlined parts marked A, B, C, D in each sentence is not correct in standard English. Identify them: 

If we will reduce the speed of population growth, there will be less pressure on the earth. 

I’ve got my photos drying out on the kitchen floor, so whatever you will do, don’t tread on them!

The Maelstrom is a swift and danger current in the Arctic Ocean.

Indiscriminately dumping of waste material and inadequate sewage treatment are two serious causes of environmental pollution.

The modern American dictionary is typically a single compact volume published with a modest price.

Michael has worked in three different companies in three different positions, so he has more work experience than the other applicant’s

After driving for twenty miles, he suddenly realized that he has been driving in the wrong direction.

Choose the correct answer to complete the sentence. "These companies were accused _____ having released a large amount of carbon dioxide into the atmosphere."

AIDS can be transmitted by practicing unsafe sex and receive tainted blood from one who is already infected.