Identify the following sentences according to structure. (Determine whether they are simple sentences , compound sentences, multiple sentences or complex sentences.

1.Since he arrived from London , he has not visited us.

2.The principal called me and I responded immediately.

3.John is in the classroom.

4.She tried her best to pass but she did not succeed.

5.The girl won the first prize.

6.Tina finished the test although she arrived late.

the correct answer is:

this is an example of the writer telling through description rather than showing through dialogue.

sometimes writers like to explain explicitely what's happening instead of adding dialogues of the situations., which is the case in this passage,

an great real life example for the lottery principle is the real life lottery itself. it adheres to the lottery principle so much it's even called lottery. you apply for the lottery in the manner of getting a ticket and if you are lucky, the goods are distributed to you, in this case, the huge amounts of money. there are other real life example but this is the best one.

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.