1- Let me wash the dishes for you , ( shall we will you - won't you should I ) ? 2- If the radio ( is listening is being listened listens I listened ) to , you should turn it off . 3- The weather's quite warm today , ( hasn't it - isn't it - wasn't it - doesn't it ) ? 4- While my kids ( studying were studying studied study ) , some ink ( spill spilt - Was spilt has been spilt ) on the carpet . 5- They'd never go to the party that night ( would they - wouldn't they - hadn't they had they ) ? 6- All of my clothes ( have already washed are washing have been already washed have being washed ) 7- He was badly hurt in the accident because he ( hasn't worn - isn't wearing - didn't wear - hasn't been wearing ) his seat belt . 8- My brother has his lunch at 6 , ( hasn't he - isn't he - doesn't he - wasn't he ) ? 9- Sharp comments ( sometimes make are sometimes made make are making ) by students in my class 10- He ( made was made was making had made ) the cake by himself

- My cat never ( sleep has slept - slept - sleeps ) in my room . - Jack ( wears wore was wearing has worn ) his best suit when he went to the interview . - It'd be safer if we saved money , ( hadn't it - didn't it - wouldn't it - isn't it ) ? - The tickets ( have bought bought was bought - haven't been bought ) yet . - My favorite country is Thailand . I ( was am have been have gone ) there three times . - Who( was inventing invented is invented has been invented) the washing machine - When I go shopping , I ( was buying bought buy am buying ) fizzy drinks . - Jackie ( didn't sleep slept - hasn't slept sleeps ) well since he ( travels traveled has traveled was traveling ) to Bentonville . - My shoes ( is cleaned clean has been cleaned are cleaned ) every day . - She always loads the dishwasher , ( does she , isn't she - hasn't she - doesn't she ) ?

Today , our currency is a mixture of coins and paper money . But it wasn't always that way. Before metai coins and paper bills existed , people used a lot of unusual things to buy what they needed . In one part of the world , for example , people used a shark's teeth as money. people in one area even used the bristles from elephant's tails for money. No one knows for sure when people started using metal coins for money . Archeologists have found coins dating from 600 B.C , so we know they have been around for a long time At first , people used precious metals , such as gold and silver , to make coins . They stamped the figure of a person or animal on each coin to indicate its value . In the 1200s , people in China used iron for their currency . These coins . weren't worth very much , so people had to use a lot of them to make their purchases . Because it was inconvenient to carry around a large number of heavy iron coins , the government started printing paper receipts . people took these receipts to banks and traded them in for coins. This is the first example we have for paper money . Today , most countries use a mixture of coins and paper bills for their currency . In the United States , the paper bills for their currency are all the same size and colour . For example , the one hundred dollar bill . In many other countries , the bills . come in various sizes and colours . The smaller sized bills are worth less money . This makes it easier for people to tell the value of their money at a glance . All these facts make the history of money a fascinating study . Below are some points about money : Feathers were the lightest money ever . They were used on the pacific island of Santa Cruz . Stones were the heaviest money ever . They were used on the pacific island of Yap. Some weighted over 500 pounds . The smallest money ever used was in Greece . The coins were made of metal , but smaller than an apple seed .

A) In China in the 1200s , coins were made of .. a- Gold b- Silver c- Copper d- IronB) In most countries , the is a mixture of paper and coins . a- Dollar b- Precious metal c- Currency d- Receipt C) Some of the stone money weighted over .. pounds . a- 500 b- 600 c- 60 d- 5000 D) . were the lightest money ever . a- Shark's teeth b- Sea shells c- Feathers d- Stones 2) What is the date of the earliest coins ? 3) What metal were the first coins made of ? 4) What country made the first paper money ? 5) Why did they make the paper money ? 6) What do the following words in the text refer to ? a- they .. b- its c- them .. 7) What do the underlined words in the text mean ? a- existed b- precious c- various .