<span>The words he has chosen which are "difficult, force, crooked, struggling, tangled, fallen, fear, faint, and hungry", shows that he is going through quite a scary and tricky time, but it was hard for him to pass that swamp, and you can see he chose excellent words on how his journey was like. Plus the words " struggling, fear, and hungry", shows what difficulty he is going through and you as the reader imagine yourself in that position and you would feel it all scary on how he is experiencing it.</span>
<span>The question is 'self interest motivate producers to offer ............ products. The correct option is B. In market situations, producers' self interest, which is the desire to make more profit, always motivate producers in supplying products that are more expensive. The profit margins of producing more of an expensive product is usually higher compared to other less expensive products.</span>
The answer is D.
"Keep", "factor", and "calculate" are all verbs in the list of things the new system allows teachers to do. The other sentences are inconsistent with their list of verbs/adjectives/nouns. Thus, option D is the only one that is grammatically correct.
I am not too good at explaining, so let me know if you are still confused.
Hope this helps! :)
Answer:
The concept of national parks was one of the most popular ideas in The U.S. ever produced. It stemmed from the desire to protect species places for visitors' present and figure enjoyment. Since Yellowstone was designed in 1872, the concept of what constitutes a national park has expanded significantly.
