A participle, a gerund, or an infinitive May be used as a noun substitute. The infinitive functions either as an adjective or as a noun.
Answer:
became
took
was
changed
Explanation:
In the last hundred years, became much easier and more comfortable. In the 19th century, it took two or three months to cross North America by covered wagon. The trip was very rough and often dangerous. The situation changed a great deal over the last century. Now you can fly from New York to Los Angeles in a matter of hours.
The correct answer is (C), they persuaded the king to lower tariffs and help with trade.
