Complete the sentences in the paragraph with the passive form of the verbs in parentheses. Luury items are expensive for a reason. Expensive watches, for example (make) from precious metais such as silver or platinum Beautiful jewelry. (produce) by people, not by machines. Precious stones such as diamonds and opals (separate) from tons of rock, and that requires expensive machinery. Imported luury tems (bring) in from distant countries, so the cost of transportation adds to their expense. Finally, a luxury item such as perfume (make) from special ingredients that can only be found in a few places in the world