Avoid False Expletives $($weak sentence starts$)$

Avoid using false expletives like $$there are$,$ and $$it is$.$ Avoid using $$this$$ as the subject unless a noun follows it$,$ for example, $$This fire extinguisher has a C rating$.$

$13.$ There are many projects that could be considered for design awards.

$14.$ It is difficult to establish a cost per square foot for this system.

$15.$ It is clear to the hiring committee that writing skills are important.