Choose the letter A, B, C or D to complete the sentences:
On the federal level, the endangered species list is managed ….....…. the Endangered Species Act.

My cousin  obviously didn’t ................... much of an impression on you if can’t remember meeting her.

If____________, those areas will not be available to future generations any longer.

-"We'll have to hurry if we want to finish this project on time."-"_________

_______ is the existence of a wide variety of plant and animal species living in their natural environment.

The mountain gorilla is on the verge of ...........................

Choose the best answer:

If you learn this lesson carefully, you ................. the exam.

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined bold word(s) in each of the following questions: 

The adhesive qualities of this new substance far surpass those of all others of its type.

Choose the best answer among A, B, C or D that best completes each sentence: He advised me to take an English course. I …… it early.

Numerous types of cells, such as skin cells and white blood cells, have the power reproduce asexually.

Choose the best answer:
He promised to mend the broken wheel soon without ___________ .

For more than ten years, we have seen the significant ..................... in the economy of our country.

Indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

At the moment it is difficult to assess the extent of the damage that his company has caused to the environment.

Mark the letter A, B, C or D on your answer sheet to indicate the word(s) SIMILAR in meaning to the underlined word(s) in each of the following questions.

The company president's veracity has been questioned, but we do not doubt his truthfulness.

Read and choose the appropriate option: 
WHY DO ANIMALS GO EXTINCT? Different kinds of animals have appeared and disappeared throughout Earth’s history. Some animals go extinct because the climate (41)_______ they live changes. The climate may become wetter or drier. It may become warmer or cooler. If the animals cannot change, or adapt, to the new climate, they die. Some animals go extinct because thay cannot (42) _______ with other animals for food. Some animals go extinct because they are killed by enemies. New kinds of animals are always evolving. Evolving means that the animals are changing (43) _______ from generation to generation. Small differences between parents, children, and grandchildren slowly add up over many, many generations. Eventually, a different kind of animal evolves. [evolve: tiến hóa] Sometimes many of the animals on Earth go extinct at the (44) _______ time. Scientists call this a mass extinction. Scientists think there (45) _______ at least five mass extinctions in Earth’s history. The last mass extinction happened about 65 million years ago. This mass extinction killed off the dinosaurs.
(43)..........................

The world's biodiversity is declining at an unprecedented rate, which makes wildlife _______.

Mark the letter A, B, C or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

Steve was very happy in his job until he fell out with his boss. After that, it was difficult for them to work together.

Choose the best answer:

 If he ................. a student, he must wear school uniform.

Choose the best answer:

She asked me where I .............. from.

Animals classified as CR on the conservation status scale are in danger of__________

Choose the correct answer in each sentence.

Since the report had not yet been  ____________  , Ms. Pantel had time to correct an error she had found.