Look at each of the words:
tasted
tasteful
tasteing
tastey
as you can see, the last two words should be spelled tasting and tasty, but the first two words are correct without dropping their e's.
So the answers are the suffixes
-ed and -ful
4, 5, 6, hope that helps.
Answer:
I like to climb.
My favorite subject is English.
Dogs are cute.
The sky is blue.
Santa likes cookies and milk.
It is completely silent and for most criminals, untraceable.
