Answer:
My familia y yo fuimos de vacaciones, pero "hacía" mucho calor.
My familia y yo fuimos de vacaciones, pero el tiempo "estaba"muy caluroso.
Explanation:
You can use any of thw options I wrote for you.
I'm mexican so I know this stuff.
Estan Caminando isn't the answer as because "estan" implies to be another person, but this isn't the case as it's only the man, the man isn't walking (caminando either)
He isn't shopping (comprando) and he isn't painting (pintando)
The only logical answer is he's cooking (cocinando) which is also heavily implied as him having the bowl and whisk
B.) Esta Cocinando is your answer
Juan habla tan rápidamente como Amy