Try not to end sentences with prepositions.
Although this is not a hard-and-fast rule, many teachers hate it when you end sentences with prepositions such as “around,” “of,” “about,” etc. There is even a joke sentence that addresses this problem: “A preposition is a bad word to end a sentence with.” The sentence is a joke because the word “with,” of course, is a preposition!
To avoid this trap, simply rephrase your sentences.
These examples:
That bull is nothing to be afraid of.
You gave me something to think about.
could easily be rewritten to read:
There is no need to be afraid of that bull.
I will think about what you said.
