Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word that best fits each of the numbered blanks from 35 to 44.
Environmental Concerns
Earth is the only place we know of in the universe that can support human life. (35) _____ human activities are making the planet less fit to live on. As the western world (36) _____ on consuming two-thirds of the world's resources while half of the world's population do so just to stay alive we are rapidly destroying the (37) _____ resource we have by which all people can survive and prosper. Everywhere fertile soil is (38) _____ built on or washed into the sea. Renewable resources are exploited so much that they will never be able to recover (39) _____. We discharge pollutants into the atmosphere without any thought of the consequences. As a (40) _____ the planet's ability to support people is being reduced at the very time when rising human numbers and consumption are (41) _____ increasingly heavy demands on it.
The Earth's (42) _____ resources are there for us to use. We need food, water, air, energy, medicines, warmth, shelter and minerals to (43) _____ us fed, comfortable, healthy and active. If we are sensible in how we use the resources, they will (44) _____ indefinitely. But if we use them wastefully and excessively, they will soon run out and everyone will suffer.Question 43
A. maintain
B. stay
C. hold
D. keep
Đáp án : D
Keep + N + past participle/adj = duy trì, giữ cho ai ở tình trạng nào.