The correct answer is D. A<span>nimal testing is a cruel way to advance the progress of science. A simple sentence is one which has one predicate, or finite verb in it. In sentence D, the only predicate is IS, whereas <em>to advance </em>is infinitive, and thus cannot be considered a predicate. The other sentences have more than one predicate, and therefore are not simple sentences, but rather either complex or compound.
The answer is He is estranged from his family . Which means that he doesn't have a bond with someone , he doesn't have that affection for someone . Nice passage by the way !
The answer to question 2 is C. Make an inference to connect you thesis. The answer to 3 is B. To find the central idea, you look at the details in the text: what characters say and do,... I don't know what number 1 is I got it wrong but I know it's not C
