Answer:
A. It is a fragment and needs a verb.
Explanation:
A is correct because "All the houses on our block" includes a noun, but not a verb. There is no linking verb that describes what the houses are like. "All the houses on our block are beautiful" is a complete sentence because the word "are" links the ideas "houses" and "beautiful" together.
Answer: He acts like a bully.
Explanation: He was mean to his entire family.
Answer:
Three of the most important breakthroughs in medicine were the identification of insulin, the introduction of aspirin, and the discovery of penicillin.
Explanation:
The text is doesn't need any additional punctuation
New technologies have contributed to the development of communication and transport, which led to globalization. The internet has revolutionized our era, creating a constant flux of information as well as of money. Knowledge is now much more accessible. The world has a become a network. The technological revolution has facilitated our lives in various fields such as in industry or in housework. However, together with all of these benefifts, technology has changed who we are and the way we socialize with each other. This might represent the end of certain traditions and ways of life. In addition, one must take into account the way technology is being used in illegal spheres. A good example of this is the way terrorist groups around the world, most specificly ISIS, have begun to use social media to recruit new militants.
Its the answer d hope these helps