Choose the letter (A, B, C, or D) as the best answer to complete the following sentences.

Dinosaurs are thought to __________ out millions of years ago.

The children like to put ___________- nice clothes when they go out.

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

She spoke quietly to him ______ nobody else could hear a word.

Choose the best answer to complete these following sentences

 It’s very kind______you______say so!

Choose the best answer. "Minh wishes he could speak English _______."

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

What time will you _______ for Da Lat?

Choose the correct option: Last week, he ………. to the school library.

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

 I was the first person ___________ the accident.

According to the schedule, the train __________ at 12 a.m.

Identify the word or phrase that must be changed to make the sentence correct by underlining it and correcting it in the numbered box. 

All Mike’s friends fell sorry for him when he had to give up playing football.

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

It is ___________ knowledge that newspapers report news.

Choose the correct option: On the left …… the room, we can see many pictures ……….. the wall.

Give the correct form of the verbs to complete the passage.

Panda is _________ to China only. (nation)

I hope the weather will be nice ______ the weekend.

Choose the letter (A, B, C, or D) as the best answer to complete the following sentences.

You are late again, please try to be __________ in the future.

Choose the best answer. "They tried to translate his novel ______ different languages."

Choose the word or phrase which best completes each sentence. 

While the front door ________, please use the side entrance.

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

My mom is always bad-tempered when I leave my room untidy.

My uncle is a ______. He often does research in his laboratory.

Our energy will soon come to an end if we don't__________ it.

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 can be inferred from the text?