Which sentence uses the underlined preposition correctly?

a.
he saw the squirrel slip off of the branch.

b.
he saw the squirrel slip off the branch.

postive, comparative, superlative - good, better, best

recall how we defined nouns as words capable of having plurals and possessive endings. adjectives (and their first cousin, the adverb) also have a feature that distinguishes them. they come in three states. first, the raw adjective—in its positive state—merely describes the noun modified; it doesn’t care about how this particular person or thing stacks up against other members of the same noun class

i believe that dan is so anxious because he dose not know what awaits him when he gets there. but i dont know to be honest