When people start out in a career and make a cover letter for an entry level job they sometimes make mistakes on their letter. It is helpful to know what pitfalls to look out for.
Here is one example of a bad sentence in a bad cover letter:
Using a passive voice
Responsible for the assisting in developing marketing collateral.
Why is it bad? It is generic, boring and vague. What does the person mean exactly? How did the person assist others? What was their contribution specifically?
What to do about it? Add more specific detail. Also a more dynamic and active sentence would grab attention quicker. And finally, consider using our cover letter service to help you make your cover letter better