用戶【林瑞佑】點評問題和點評內容

【評論主題】13.To paint a picture later, _____.(A) a rough sketch of the scene is useful(B) he made a rough sket

【評論內容】

To paint a picture later這一句的主詞是人,這個人被省略了,所以第二句的主詞必須是人''he''.