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

Halley’s Comet had its first documented sighting in 240 B.C. in China and ………..it has been seen from the Earth 29 times.

Choose the word or phrase (a, b, c or d) that best fits the blank space in each sentence.

Thousands of people took part in a _____ of support for free higher education.

Choose the letter A, B, C or D to complete the sentences:

Species have ________ to climate changes throughout history.

Choose the underlined word or phrase (A, B, C or D) that needs correcting.

If I have many (A) homework (B) to do, I will not be (C) able to attend (D) the meeting.

Choose the correct answer to fill in the blank. 

The development of laser use is a major________in medicine.

Give the correct form of the word in brackets to complete each sentence. 

Burning coal is an ___________ way of heating a house. Gas is much cheaper.(economy)

Choose the words or phrases in brackets that best completes each sentence:

-Nam: “Don’t forget to come to my party tomorrow” - Lan:_____________

Choose the best answer to complete each sentence.

Species have               to climate changes throughout history.

Supply the appropriate forms of words in the brackets. 

______ skill is the one skill that can grant you the opportunity to get a good job. (LEAD)

Choose the correct response to each of the following exchanges:

"Where should we start with the project?" – “____”

Choose the correct answer (A, B, C or D) in each sentence:

We may have a __________of oxygen in the future if all the rainforests are cut down.

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

Of those _____ took the test last week, Phong is the only one who didn’t study for it.

Choose the word or phrase (a, b, c or d) that best fits the blank space in each sentence.

Most parents think chatting on the Internet is _______

Supply the appropriate forms of words in the brackets. 

There was a_________ in the arrangements so I missed my flight. (SLIP)

Choose the most suitable word(s) to these sentences by circling A, B, c, or D.

Please wait for a moment. It………………..heavily.

Underline and correct the mistakes in these sentences

We haven’t met when we left school.

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

The closest potentially _______planet ever found has been spotted by Australian scientists, and it’s just 14 light-years away.

Choose the word or phrase (a, b, c or d) that best fits the blank space in each sentence.

Were you brought ______ in the city or in the country?

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

The old theater of our city is being enlarged and__________ . (modern)

Choose the correct answer (A, B, C or D) in each sentence:

Last week, my friend (invite) _____________ me to join his family on a trip to his home village.

Supply the appropriate forms of words in the brackets. 

Whenever examination is in progress, I often see parents, family members, and _________ waiting anxiously outside the exam sites. (WISH)