At the blue table, they _____________ some boats.

A. make  

B. makes    

C. are making    

D. is making

Kí hiệu (H) là hình phẳng giới hạn bởi các đường y = ( 4 - x 2 ) , y=0. Tính thể tích V của khối tròn xoay thu được khi quay (H) quanh trục Ox

A.  V = 2 π

B.  V = 71 π 82

C.  V = 512 π 15

D.  V = 8 π 3

Chữ số 6 trong số thập phân 2,697 có giá trị là:

A.  6 10

B.  6 1000

C.  6 100

D. 6

Cho hình chóp SABC có đáy là tam giác đều cạnh a 2 , SA vuông góc với đáy, SA=6a. Tính thể tích V của khối chóp SABC 

A.  V = a 3

B.  V = a 3 3

C.  V = 2 a 3

D.  V = 3 a 3

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.

No one but the experts was able to realize that the painting was an imitation. It greatly resembled the original.

A. It was hard for ordinary people to judge between the fake painting and the real one, but not for the experts.

B. It was almost impossible for amateurs to realize that the painting was not authentic, though the experts could judge it quite easily.

C. The painting looked so much like the authentic one that only the experts could tell it wan’t genuine.

D. It was obvious that only a person with great talent could fake a painting so successfully.

Before Lan______ to bed, she had turned off the light.

A. had gone

B. has gone

C. went

D. went to

Eric______ a flat yet, so he’s still living with his parents.

A. is finding

B. found

C. hasn’t found

D. didn’t find

Read the passage and answer the questions from 36 to 40 that follow by circling the corresponding letter A,B,C, or D.

World Wildlife Fund (WWF) safeguards hundreds of species around the world, but we focus species attention on our flagship species: giant pandas, tigers, endangered whales and dolphins, rhinos, elephant, marine turtles and great apes. These species not only need species measures and extra protection in order to survive, they also serve as “umbrella” species: helping them helps numerous other species that live in the same habitats where animals or plants are normally found. In addition to our flagship animals, we work to protect numerous species in peril around the world that live within our priority eco-regions. Laree predators like snow leopards and grizzly bears, migratory species like whooping cranes and songbirds, and a host of other species facing threats also benefit from WWF’ s conservation efforts. Our wildlife trade experts at “traffic” work to ensure that trade wildlife products, doesn’t harm a species, while also fighting against illegal and unsustainable trade. WWF is known for acting sound science. Science leads and guides us strategies and approaches, from the way to restore tigers in viable, breed population to decide which areas need protection the most.

What can science help us in safeguarding endangered species?

A. Lead and guide strategies and approaches.

B. Find the way to kill all species easily.

C. Discover another habitat of animal.

D. Search for a food source for animals.