Reading strategies and comprehension

The increase of fuel fee is the global problem. What is the function of "increase"?  

Jack whom Jenny met yesterday was very handsome. What is the subject?

Smoke-free laws had no effect on restaurant sales. What if the function of "smoke-free"?

The company whose employees are laid off has headquarter in Thailand. What is the subject?

The company that recruited many employees last year was closed down. What is the main verb? 

The boy tries to enlarge the balloon by blowing. What is the function of the word "enlarge"?

Rose can distinguish smells of fragrances. What is the closest meaning of "distinguish"? 

The charity organization solicits funds from members. What is the closest meaning of "solicit"?

Mr. Atichat, who is a TOEIC lecturer, assigned lots of homework. What is the main verb?

We can guarantee room available if you book now. What is the closest meaning of "guarantee"?