Read the look out! Then complete the sentences. Use the past simple form of the verbs below.
begin build come fall make take think
1. Alexander Bell the first telephone call in 1876.
2. In the fourteenth century, many peoplethat the Earth was flat.
3. Isaac Newton discovered gravity when an aple from a tree onto his head.
4. In 1926, John Logie Baird the first television.
5. Marie Curie worked in Paris, but shefrom Poland.
6. Charles Darwin writing On the Origin of Species in 1859.
7. Apollo 11 about 76 hours to travel from Earth to the Moon.

answer: dinner and a movie with your friends this saturday night.

opportunity cost refers to the benefits that a person or business misses out on when choosing one alternative over another. opportunity costs are easy to miss, but they can be important for decision-making. in this example, the alternative that the person will miss out on is the opportunity to have dinner and watch a movie with friends on saturday, as he will have no money left after buying the cd.

a) the british government verbally threatens the colonies.

b) the british government has sent navies and armies to the colonies.

c) the british government argues against separation in the house of commons.

d) the british government has sent petitions and letters to all of the colonists.