An appropriate summary for the article "A Most Troublesome Element" is the last option - C. Arsenic is a naturally occurring, poisonous element that has threatened the health of humans since the Middle Ages.
It clearly states what the whole article is about.
Because he was extremely scared and surprised
Answer:
1. the down town area is so crowded that it is difficult to get a taxi
2.my sister is so young that she can't go to the zoo alone
3.the road is so narrow that it is difficult for two cars to pass by each other
4.the tv program was so interesting that the children didn't want to go to bed early
5.the streets are so crowded that traffic jams usually happen
Which pronoun correctly completes the elliptical clause?I sold more tickets than __________.a. her <span>b. she
Answer: Her</span>
