Stars derive their energy from thermonuclear reactions that take place in their heat interiors.

Light can travel from the Sun to the Earth in eight minute and twenty seconds.

Select the best option among A, B, C or D to complete the sentences: I'm trying to be more (adventure) _______ with my cooking.

Choose the best answer.

The streets are crowded with a population..........has no interest in learning.

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

When I see the kids playing football, I almost wish I ________ their age again.

I did not realize that I had left my umbrella on the bus when it started to rain.

Choose the correct answer. " I’m going to spend one weeks _____ in my grandmother’s house."

Many animal species are totally colors blind, but the condition is very rare in humans

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

In the last hundred years, traveling ___________ much easier and more comfortable.

Mark the letter A, B, C or D to indicate the correct response to each of the following exchanges

Lan: “Would you rather work for a male or female boss?” Nam: “__________”

Choose the best answer.

What do you call the man ..............daughter has won the prize?

Choose the best answer:

_____ you pay more attention to your work, you'll probably get poor marks in the final exam.

Although ferns lack flowers, they do have leaves, stems, and root.

What about ___________the piano this afternoon?

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

Nguyen Du devoted all his lifetime___________ writing.

Pigeons, like many migratory birds, read the positions of the Sun and stars in order to orient them

Choose the best answer:

The police must try to catch those men _____ drive dangerously.

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

_________ reptiles hunt at temperatures of 120C or below

Choose the best answer.

They ..........already........ a new bridge.

Some methods to prevent soil erosion are plowing parallel with the slopes of hills, to plant trees on unproductive land, and rotating crops.

Pictures of the surface of the planet Venus was received yesterday from the space probe “Explorer”, which was launched last year.