Some of the participants ______________ to the conference couldn’t come because of the bad weather.

Many scientists ________ the blame for recent natural disasters on the increase _________ the world's temperatures.

Air water and soil are necessary things to our _________.

The excavation relics ____________ from the museum haven't been found yet.

I feel tired. Therefore, I ______ to school.

If you try to mix oil and water, the oil _________ to the top and the water to the bottom.

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

There are no easy ways to learn a foreign language, _________?

Trang An Scenic Landscape Complex, ___________as a World Heritage Site, is famous for its cultural value, natural beauty, ____________ value, and preservation of heritage.

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.

The patient recovered more rapidly than expected.

Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions

Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.

I am very fond of _______.

The increase in the earth’s temperature can cause _________ illness which can be dangerous to people.