Dependent prepositions
I'm really tired ..... listening to my sister. She complains about her boyfriend all the time. A-for B-of C-about
B- of
Katy's worried ..... her end-of-year exams. She thinks she's going to fail. A- by B- for C- about
C- about
The waiter was so rude ..... us that we didn't leave a tip. A- to B- with B- on
A- to