Meaning
David and Sofi are in the same boat; mocks are next week.
To be in the same situation as someone else. They both have mocks and presumably are similarly well prepared (or stressed).
Monica goes the extra mile by offering extra tutoring.
Monica went the extra mile by offering extra tutoring.
Strike a chord
Strike/struck a chord with...
The topic paving the road is a real hot potato in Santa Teresa.
It is a controversial issue that nobody wants to deal with.
The mayor of Cobano bites the bullet and begins drafting new environmental legislation.
The mayor of Cobano bite the bullet and began drafting new environmental legislation.
In a nutshell
In a nutshell, [summary of something]
Unfortunately, she's a bit under the weather today.
She is sick. She is not feeling well.
An open book
[Someone] is an open book... (they reveal their thoughts and emotions easily)
As the racoon jumped from my trash can out of the blue, I couldn't quite decide how to react. Was I scared? Was I overwhelmed by the cuteness?
The athlete hit the ground running with their comprehensive cardio and weight training in anticipation of their upcoming competition.
The athlete hit the ground running with their comprehensive cardio and weight training in anticipation of their upcoming competition.
A double-edged sword
[Something] is/was a double-edged sword (it has both positive and negative elements)
As the tree fell on her house, Linda thought to herself: "What a blessing in disguise! I can finally renovate the property exactly as I please."
Something seemed bad, but it had a positive outcome that was less visible.
Despite the parents' best attempts to keep their child within sight, the child goes AWOL and refuses to communicate for days.
Despite the parents' best attempts to keep their child within sight, the child went AWOL and refused to communicate for days.
As a rule of thumb, [do/don't do something] (something that is generally good to do; a helpful guideline)