When actively hunting, a dolphin sends out transmitting about five signals every second

Choose the letter A, B, C, D to indicate the correct answer to each of the following questions:

If it ___________ (rain), 1 will stay at dome.

Stephen Hopkins was a cultural and political leadership in colonial Rhode Island

Choose the underlined part among A, B, C or D that needs correcting:

John didn’t go to work because of he was seriously ill.

Identify the mistake in each sentence: 

Antique auctions (A) are getting more and more (B) popular in the United States because of increasingly (C) public awareness of the value of (D) investing in antiques.

Society will be having to change radically to keep pace with the technology available.

Choose the word or phrase (a, b, c or d) that best fits the blank space in each sentence.

Children will usually look________ their older brothers and sisters.

Choose the correct answer. "USB stick are _______ to store data"

So far most a million different species of insects have been identified and named.

Mark the letter A, B, C, or D on your answer sheet to indicate the best answer to each of the following questions.

The Internet allows us to ___________information quickly.

More than 10,000 years ago, glaciers moved across the Minnesota region four time , leveling most of the land.

Choose the word or phrase (a, b, c or d) that best fits the blank space in each sentence.

If you don’t know what the word means, look it_________ in a dictionary.

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

- Anh: “You haven’t eaten anything since yesterday night. You________ be really hungry!”

- Lan: “I am.”

Use the correct form of the word given in each sentence.

_________ of natural resources is everyone’s duty, (preserve)

Choose the best answer

The Tower Infinity in South Korea is supposed to be the world’s first skyscraper that, for a few hours a day, _______ an unobstructed view of the sky behind it.

Choose the best option among A, B, C or D to complete the following sentence: "How _______ do you wash your hair?"

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

Ted's flight from Amsterdam took more than 11 hours. He___________ exhausted after such a long flight now.

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

The teacher asked him why hadn’t he done his homework, but he said nothing.

Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.

Survey findings ____ that the current family remains an important production unit of society.

Choose the best answer

Notebooks, tablets and cellphones are all technology  _____  students are accustomed to and can use as learning aids.  

Astronomers do not know how many galaxies there are, but it is thought that there is millions or perhaps billions.