A widely accepted way of thinking or behaving is a convention.
It denotes set of generally accepted standards and norms and a way in which something is usually done. Example for convention is shaking hands when greeting someone. Controversial on the other hand is something causing people to have opposing ways.
The author is the origin of the text. And when you are examining the source it is possible that you could look for the author's purpose.
1. the picture was painted by my sister
2. he was laughed at by his friend
3. the soil was prepared by the gardener
4. his words must be listened to by us
5. the tanks can store the water
6. the weak shouldn't be insulted
7. the bill should be payed today
8. you're being watched by me very carefully
9. letters are being written by john
10. the river has a new bridge built across it
11. the results have been announced by them
12. why was it done by you?
some may be wrong
True. Because those two things lead to complex concepts.
The answer would be A. whose
B. who's would not make sense in this situation because who's is a contraction which means 'who is'. If that was to be used in the answer, the sentence would be, "Margaret wants to knwo<em> who is</em> bike this is," which makes no sense whatsoever
Whose shows possession
Hope my answer helped! :)
