A. Choose the correct word to fill in the gaps:
1. (invented / found out)
a) When John found out that a research company wanted to buy his gadget, he couldn’t believe it.
b) Mike invented the device, but it was his brother who put it on the market.
2. (colleagues / employees)
a) Professor Smith thanked his close colleagues for their support in his research.
b) The company’s business is growing, so it needs to hire more employees.
3. (salary / wage)
a) The pizza delivery boy thought his wage was rather low for a full day’s work.
b) If Jane gets the promotion, it will add an extra four thousand pounds to her annual salary.
4. (Geography / Earth Science)
a) Mary wants to travel to all those countries she studied in her Geography class.
b) Jason finds Earth Science fascinating because he learns a lot of things about the formation and history of our planet.
5. (raise / lift)
a) Jake’s back hurts because he tried to lift a very heavy box on his own.
b) You don’t have to raise your voice. I can hear you very well!
6. (toddler / infant)
a) Of course Annie can’t talk yet; she’s just a four-month-old infant!
b) Jamie is such a cute toddler! He’s just learning to walk and he keeps falling down all the time.