The key answer of exercise 4

a)

1. casino
2. credit card
3. inventor

b)

1. It's a place where people look after your money. (bank)
2. It's a thing which / that you use to carry money and credit cards. (wallet)
3. It's a person who / that gives money to a product or business (to make more money). (investor)
4. It's a place where you go to borrow books. (library)
5. It's a thing which/that you use to watch films. (DVD player)

c)

Student A

Down

• 4 → pieces of money which / that are made of metal, not paper
• 10 → a person who / that owns something (he / she bought it or was given it)

Across

• 6 → a thing which / that you use to call someone
• 8 → a place where you find cars, houses, shops, etc.
• 11 → money which / that you use to start a business and make more money
• 12 → a person who / that acts in films or theatre

Student B

Down

• 3 → material which / that you use to make car tyres and chewing gum
• 7 → a place where you stay when you are travelling
• 8 → a person who / that fights for his country in wars
• 9 → a thing which / that grows in the earth and is usually green

Across

• 1 → a thing which / that we use to pay for something (not a credit card)
• 5 → a thing which / that you use to download and listen to music