본문④에서 밑줄 친 빈칸ⓐ에 들어갈 적절한 단어를 고르시오.

본문④에서 밑줄 친 ⓑdoing so가 의미하는 것을 찾으시오. (5단어)

According to the text ④, when we classify items into specific categories, we can easily compare them to different objects.

According to the text ④, You can classify items in only ways of using size, shape and color. [ O / X ]

From the text ⑤, find incorrect answer that is not five examples of making a model.

In the text ⑤, there are two reasons scientists use models. The two reasons are that models are ( ) aids and they are helpful to simplify ( ) information and ideas.

본문 ⑤의 밑줄 친 부분ⓒWhen you have trouble understand how the planets go around the sun, a model of the solar system makes the concept easier to understand.는 문법적 오류가 없는 문장이다. [ O / X ]

본문 ⑥의 소제목 (A)에 들어갈 적합한 단어를 고르시오.

본문 ⑥의 밑줄 친 ⓓthey와 ⓔthey가 지칭하는 대상은 같다. [ O / X ]

다음 빈칸에 들어갈 적절한 단어를 작성하시오. Q: Why do scientists communicate? A: They communicate to share ( ), ( ), and ( )