✔ 最佳答案
1) The jewellery shown in the exhibition is priceless.
2) Please put the answers on the lines provided. 1) ‘shown in the exhibition’ is participial adjective phrase (形容詞短語), describing ‘jewellery’. 2) ‘provided’ is a participial adjective describing ‘lines’. Although they have passive connotations (意義 ), they are not called ‘passive voice’ because they are behaving like adjectives (形容詞 ), NOT verbs . 所以不需要 加 verb to be (is, am, are etc. ) In English this happens frequently because it cuts down unnecessary words. The jewellery which is being shown in the exhibition is priceless. = The jewellery shown in the exhibition is priceless. Please put the answers on the lines which are provided. = Please put the answers on the lines provided. The short form is more concise, and so it’s preferred, especially in conversation.