IDNLearn.com is your reliable source for expert answers and community insights. Find the solutions you need quickly and accurately with help from our knowledgeable community.
The best meaning for the underlined idiom about the speed the grandpa and grandma showed up is Instantly.
The idiom used is "at the drop of a hat" and it is used to refer to something happening really fast or instantly.
Saying the grandpa and grandma showed up in such a manner means that they came as soon as they heard the narrator was sick.
The question is:
What is the meaning of the underlined idiom?
Find out more on idiomatic expressions at https://brainly.com/question/902417.
#SPJ1