Answer:
A. gerund
Explanation:
The phrase in the question is a gerund phrase.
Gerund phrases are marked by verbs with the "ing" ending, and in general terms, they represent an action in course.
The pharse in the question starts with "By singing the song...", thus, it is a gerund phrase.
The answer is D
Explanation: In the second half of the passage it states that he haid sent them a "token of his very great affection". This of course means that the answer has to be D: the children’s host in Chesham still cared about them after they left.
The adverb is probably B. Leave
