Which sentence contains a phrase that is written in the passive voice and should be rewritten?
A. Sarah asked the teacher if she could try using oil paints in art class.
B. She had already successfully used many other types of art supplies.
C. She designed a birthday card for her father using ink and special paper.
D. She had even won an award for a portrait that was drawn in charcoal

the answer is:

b) to show the progression of inventions that took place in the bicycling industry.

hope it !

people are gonna need the passage.

i think it may be b, i'm not exactly too sure on this. but b seems to make more sense.

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.