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

It’s more____________ to use gas instead of electricity to warm up the house.

I let her _______ on with her work.

Chọn phương án thích họp (A, B, c or D) đế hoàn thành yêu cầu của câu.

That picture always______ me of a holiday I spent in Angkor Watt.

Select the best option among A, B, C or D to complete the sentences: The dinosaurs died _______ 65 million years _______.

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

If someone knocks___________ the door___________ night, don’t open it.

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

Every Sunday my father spends three hours__________ English.

Conservation organizations help for to preserve the ecology of an area by keeping track of endangered species.

Nga’s house …… in 1995        

Since it was so difficult for American Indians to negotiate a peace treaty or declare war in their native language, they used a universal understood form of sign language.

Tests have been performed  to determine whether studying TOEFL question will help students rise their test scores.

Choose the correct answer to fill in the blank. 

They avoid the usual tourist attractions in favour of places that are off the ______  track.

The ozone layer must be protected because it shields the Earth from excessive ultraviolet radiations.

Since it lives in the desert, the collared lizard depends from insects for water as well as for food.

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

I hate___________ personal questions by newly-acquainted friends.

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

Hiking the trail to the peak____________ be dangerous if you are not well prepared for dramatic weather changes. You____________ research the route a little more before you attempt the ascent.

Mark the letter to indicate the correct answer.

“It sounds like the problem is not your appearance but the……………you see yourself”, said the advice columnist.

Dwelling primarily in the ice Northern Polar seas, beluga whales are characteristically small, white, agile, and elusive.

She had determined the atomic_________of radium.

"Would you mind lending me you bike?" - " ......"

Life expectancy has increased a great deal in spite of modern medicine and technology.

Commercial letters of credit are often used to financing export trade, but they can have other uses.