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5: Khí hidro được thu bằng cách đẩy nước vì: A. Khí hidro không tan trong nước B. Khí hidro tan ít trong nước C. Khí hidro nhẹ hơn không khí D. Lí do khác
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ai giúp mình bài đọc này với ạ, mình cảm ơn nhìu :3 V. Read the following passage, then choose the correct answer to questions. Planet earth is part of a system of planets and their moons, as well as numerous asteroids and comets which (41)_________around a huge star we call the Sun. The Sun itself (41)_________of gas. Nuclear reactions inside its core (43)_______the heat and light that make life on the Earth (44)________. The Earth is the third of four small terrestrial (Earth like) planets that orbit close to the (45)________. Further out in our Solar System are four huge gas planets, while distant Pluto, (46)________ planet, is made (47)_________rock and ice. Our Earth is one of the ten planets that orbit the Sun- a huge, burning-hot star in the center of our Solar System. The Solar System and all the stars in the (48)________are part of our galaxy-the Milky Way, which (49)_______as many as 200 billions stars. Beyond our galaxy (50)________millions more galaxies. They all add together to make up the Universe. 41. A. run B. orbit C. turn D. walk 42. A. consists B. remains C. includes D. maintains 43. A. produce B. product C. production D. productive 44. A. able B. possibility C. possible D. ability 45. A. Earth B. Mars C. Mercury D. Sun 46. A. the smaller B. smallest C. the most smallest D. the smallest 47. A. from B. of C. for D. in 48. A. space B. Universe C. Moon D. sky 49. A. consists B. makes from C. stays D. contains 50. A. is B. are C. to be D. get

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