Answer:
d. Brady will start singing at the drop of a hat.
Explanation:
the idiom "at the drop of a hat" means Immediately, without delay.
Answer:
Robert Ballard was a deep sea explorer with a dream to find the Titanic. The US Navy asked Ballard to find and photograph two sunken submarines in the Atlantic on a secret mission. When Ballard looked for the submarines he realised a crucial piece of information.
Explanation:
https://www.google.com/amp/s/m.wikihow.com/Format-a-Letter%3famp=1
Here you have steps on how to write a formate letter
The first one " As the complicating incident ,...."