Typically, the ice sheet begins to show evidence of thawing in late summer, following several weeks of higher temperatures. [For example,] in the summer of 2012, virtually the entire Greenland Ice Sheet underwent thawing at or near its surface by mid-July, the earliest date on record. Which change should be made, if any to the bracketed portion of the sentence? A. NO CHANGE B. However, C. As such, D. Moreover,
The answer is B. "However" is a conjunctive adverb that introduces a statement/idea that contradicts what has just been said. "For example" (A) means that what follows will demonstrate the rule, rather than break it. "As such" (C) has to do with defining what just came previously, but we're not defining were showing how a pattern has been broken. "Moreover" (D) is used to add empphasis to an example or anargument.
Who was the first President to be impeached?
Andrew Johnson - he was impeached in 1868 for high crimes and misdemeanors.
The county cleared this [path and paved] it with packed gravel, so they would have a peaceful place to hike and bike. Which of the following alternatives to the bracketed portion would NOT be acceptable? A. path, paving B. path and then paved C. path before paving D. path paved
The answer is D. This answer creates a run on sentence which is not acceptable. Where as the other three choices all express the same idea in slightly different ways creating grammatically correct phrases.