Directions: Look at the underlined part of the sentence. Below the sentence, three possible substitutions for the underlined part are given. If one of them, i.e. (1), (2) or (3), is better than the underlined part, indicate that as your answer. If none of the substitutions improves the sentence, indicate (4), i.e. "No improvement" as your answer.

The teacher said that the Earth was round.