In english it is very common for vowells to be silent, or ignored. usually this is because they are making another vowell make a sound but this isn't always the case. Some example words could be Giraffe (e is silent) and Rules (the e makes the u make a sound but if it weren't for english rules, could be taken out.) Business also works (we don't say the i)
Answer:
Cien
Explanation:
I remembered doing this last year so I looked at my number sheet I gotten and I found the number 100 and it was Cien in Spanish. I also was just practicing my numbers today just for fun and I only remembered the number 100 because it was easy/short word to remember.
A) Durmamos
Your sentence means:
The flight attendant recommends that _____during the flight.
So it makes sense that you would sleep on the flight