Scientists are looking for an..................... way to reduce energy consumption

Choose the best answer to complete each of the following sentences. 

______________ our children may be, we cannot go picnicking in this weather.

Choose the word or phrase which best completes each sentence.

Only during the early twentieth century __________ in the United States.

They have _____ been here

There is one mistake in each following sentence. Find and correct it.

I was made work hard by my teacher.

Read the following passage and choose the best answer to each question. Write your answers in the space provided. 

For centuries, skywatchers have reported seeing mysterious flashes of light on the surface of the Moon. Modern astronomers have observed the same phenomenon, but no one has been able to satisfactorily explain how or why the sporadically sparks. However, researchers now believe they have found the cause.

Researchers have explained the chemical content of Moon rocks retrieved by astronauts during the Apollo missions and have found that they contain volatile gases such as helium, hydrogen, and argon. The researchers suggest that stray electrons, freed when the rock cracks, may ignite these gases. Indeed, lunar rock samples, when fractured in the lab, throw off sparks.

What causes these rocks to crack to the lunar surface? The flashes are most often seen at the borders between sunlight and on the Moon, where the surface is being either intensively heated or cooled. A sudden temperature change may cause thermal cracking. Another possibility is that meteors may strike the rocks and cause them to crack. Finally, lunar rocks may be fractured by seismic events- in other words, by tiny moonquakes.

Which of the following is NOT mentioned as a possible cause of cracks?

Circle best option A, B, C, or D to complete the following sentences.

I’m going to take a couple of days………….…..….. next month to help my sister move house.

Choose A, B, C, or D to complete each sentence.

What ______ views do Americans and Asians have about love and marriage?

Thanks to the Internet people can get the........................information.

There is one mistake in each sentence. Find the mistake and correct it. 

Stop making so much noise or the neighbors are going to get angrily.

Choose the correct answer to complete each of the following sentences. 

Writers and novelists are___________people.

Choose the word or phrase which best completes each sentence.

Don’t put David in charge of arranging the theatre trip; he’s too _________.

 Choose A, B, C, or D to complete the sentence.

In the afternoon, as soon as he completes _____ homework, he feeds the chickens and collects _____ eggs.

If there were flying saucers , we … traces of their landing . 

Choose the correct option: Next year, Mr Phong ......... in Da Lat.

Internet users sometimes have to ......................various viruses

Choose the word or phrase which best completes each sentence.

There ………….. changes in the climate for the last ten years.

Choose the word or phrase which best completes each sentence.

The man ………….. by his girlfriend will go on business with my father.

Choose the best answer to complete each of the following sentences. 

Did I find a wallet in the street, I _______it to the police.

Choose the best answer from A, B, C, or D to fill in the blanks.

Tommy: “I’m sorry. I won’t be able to attend your wedding”. – Mary: “____________”.

 Choose A, B, C, or D to complete the sentence.

He was holding a tiny bird in the _____ of his hand.