Answer:
4). At the skyscraper, we watched them in action building their masterpiece.
Explanation:
As per the question, option 4 displays the sentence that is written in active voice as the subject/doer is accomplishing the action expressed by the verb in the sentence which is contrary to the sentence written in passive voice which involves a subject that receives the action or being acted upon(by the verb). Options 1, 2, and 3 emphasizes the object('the skyscraper visit', 'the museum', and 'those works of art') instead of the subject which implies that they are the recipient of the action. Thus, only option 4 contains the subject 'we' that is performing the action 'watched' rather then receiving it. Therefore, <u>option 4</u> is the correct answer.
Answer: Students prefer salty snacks over sweet because the percentage of sweet snacks were lower than the percentage of salty snacks
For the main reason that "it promoted sacrifice for the common good." the speech was commonly read during the Cultural Revolution. This speech was the primary political propaganda of Mao Zedong as a slogan during the dark times of the Chinese cultural history.