"Has been waiting" should be your answer. a simple predicate is the verb or verb phrase in the sentence and it usually tells what the subject does.
B. and sings a solitary song.
One way alliteration can be found when an author or writer uses words that begin with the same sound or letter such as the 's' sound above.
A is the most clear and sensible answer
To gain
to vote
to speak
to pay
to see
to win
to achieve
to grant
to vote
to mint
to put
to honor
to gain
to have
here are the infinitive for each number