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

Our plane arrives in Hanoi at _________ two o’clock in ______ afternoon.

Because of its vast tracts of virtually uninhabited northern forest, Canada has one of the lowest population density in the world.

Because helicopters are capable of hovering in midair, they are particularly useful for rescue missions, military operates , and transportation.

The Medal of Honor is the higher award for military bravery that can be given to any soldier of the United States.

The Vermont Elememary Science Project, according to its founders, are designed to challenge some of the most widely held beliefs about teaching.

Choose the best answer among the A, B, C, or D provided to finish each of the incomplete sentences below:

Economic reforms began in the Vietnam in 1986 by the leaders of the country to decide to____________ the economy.

She was sad ________ my refusal. 

Choose the best answer among the A, B, C, or D provided to finish each of the incomplete sentences below:

Doctors have to assume___________ for human life.

It’s a lovely old house, I agree, but can we afford to moderning it?

Choose the correct answer. " Stress and tiredness often leads_____ lack of concentration."

Find the option that needs correcting.

Do you have many money in the bank?

Choose the best answer among the A, B, C, or D provided to finish each of the incomplete sentences below:

Table salt is composed___________ two elements, sodium and chlorine.

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

It is __________ that the best time to visit Hanoi is September.

Stars in our universe vary in temperature, colour, bright, size, and mass.

Choose the best answer among the A, B, C, or D provided to finish each of the incomplete sentences below:

Deserts are often composed of____________ and rocky surfaces.

He is angry ________ losing his wallet. 

Choose the best answer among the A, B, C, or D provided to finish each of the incomplete sentences below:

I must tell you about my_____________ when I first arrived in London.

Choose the attitudinal adjective with the appropriate definition: "sometimes but not often"

The Library of Congress, located in the nation’s capital, houses history documents and photographs as well as most books published.

Choose the best answer among the A, B, C, or D provided to finish each of the incomplete sentences below:

A recent survey has shown that supporters of equal partnership in marriage are still in the__________.

He has got several hundred bottles of wine which he keeps in the cellar below his house.