1: Why DID you NOT CLEAN the bathroom yet?
2: The professor DID GIVE lectures all afternoon.
3: I WILL NEVER BE outside Europe.
4:The children MUST MEET their cousin.
5: Hey Dora DID YOU RUN? Her face is bright red!
6: it’s the first time Rob ASKED me a favor.
7:Where ARE they DID THEY STAY since they arrived in Madrid?
8: You DID NOT GIVE us enough time to complete the task.
Hope this helped! :)
Explanation:
f⋅λ=c
f is frequency
λ is wavelength
c is speed of EM radiation in vacuum
(92.1×10⁶Hz)⋅λ=3.00×10⁸m/s
λ=3.26m
2 and 4
the correct answer
I would write hi how is it in London do you remember what I want for Christmas I will give you a clue it is long and Christmassy