Toefl review exercise skill 1 8 năm 2024

______ Hale telescope, at the Palomar Observatory in Southern California, scientist can photograph objects several billion light years away.

• A. The
• B. With the
• C. They use the
• D. It is the

Correct Answer

2. With the

Explanation With the Hale telescope, at the Palomar Observatory in Southern California, scientists can photograph objects several billion light years away. The Hale telescope is a powerful instrument that allows scientists to observe and capture images of distant celestial objects. Located at the Palomar Observatory, it provides researchers with the ability to study and analyze objects that are billions of light years away, offering valuable insights into the nature of the universe and its evolution.

• 3.

  Without the proper card install inside the computer, ______ impossible to run graphic program. A.

  Is definitely
• B. Because of
• C. It is
• D. It Correct Answer
• It is Explanation The correct answer is "it is." This is because the sentence is stating that without the proper card installed inside the computer, it is impossible to run a graphic program. The phrase "it is" is referring to the fact that without the card, running the program is impossible.
• 4.

  The charter for the Louisiana lottery was coming up for renewal, ____ spared no expense in the fight to win renewal. A.

  The lottery committee
• B. So the lottery committee and
• C. So the lottery committee
• D. The lottery committee made Correct Answer
• So the lottery committee Explanation The sentence suggests that the Louisiana lottery committee was willing to spend a significant amount of money in order to secure the renewal of their charter. The phrase "spared no expense" indicates that they were willing to go to great lengths and spend whatever was necessary to win the renewal. Therefore, the correct answer is "so the lottery committee".
• 5.

  While in reality Alpha Centauri is a triple star, _____ to the naked eye to be a single star. A.

  It appears
• B. But it appears
• C. Appears
• D. Despite it Correct Answer
• It appears Explanation The correct answer is "it appears." This is because the phrase "it appears" correctly completes the sentence and conveys the idea that despite Alpha Centauri being a triple star in reality, it appears to the naked eye as a single star.
• 6.

  The sun’s gravity severely distorted the path of the comet ____ entered its wildly erratic orbit around Jupiter. A.

  It
• B. When
• C. After the comet came into it
• D. Once the comet Correct Answer
• Once the comet Explanation The correct answer is "once the comet". This answer suggests that the sun's gravity caused the comet to enter a wildly erratic orbit around Jupiter at a specific point in time, which is indicated by the word "once". The other options do not convey the idea of a specific point in time when the comet's orbit was distorted.
• 7.

  Each object _____ Jupiter’s magnetic field is deluged with electrical charger. A.

  Enters
• B. It enters
• C. Entering
• D. Enter Correct Answer
• Entering Explanation The correct answer is "entering". This is because the sentence is describing a continuous action of objects going into Jupiter's magnetic field. The present participle form "entering" is used to show this ongoing process.
• 8.

  As its name suggests, the Prairie Wetlands Resource Center ____ the protection of Wetland on the prairies of the Dakota, Montana, Minnesota, and Nebraska. A.

  It focuses
• B. Focuses
• C. Focusing
• D. To focus on Correct Answer
• Focuses Explanation The correct answer is "focuses". The sentence is discussing the purpose or objective of the Prairie Wetlands Resource Center, which is to protect wetlands in the prairies of Dakota, Montana, Minnesota, and Nebraska. The word "focuses" indicates that this is the main area of attention or concentration for the center.
• 9.

  One of the target and most powerful birds prey in the world, _____ a six foot wingspan and legs and talons roughly the size of man’s arm and legs. A.

  So the harpy has
• B. The harpy having
• C. With the harpy having
• D. The harpy has Correct Answer
• The harpy has Explanation The correct answer is "the harpy has". This answer is grammatically correct and fits the sentence structure. It states that the harpy possesses certain characteristics, such as a six-foot wingspan and large legs and talons.
• 10.

  _____ creation of such a community was a desirable step, the requisite political upheaval had to be acceptable. A.

  Since the
• B. The
• C. Later, the
• D. It was the Correct Answer
• Since the Explanation The correct answer is "since the". This phrase suggests that the creation of the community was desirable, but it could only happen if the necessary political upheaval was acceptable. The word "since" implies a cause-and-effect relationship, indicating that the community's creation was dependent on the political situation being acceptable.