Problem with module 10 unit 7 and 8 "Do"

I am finished with all the modules that are required for us except for modules 10 units 7 and 8

For unit 7 I am not able to submit from the 2 situations.

As for module 8, I tried all the answers including the correct answer but it kept directing me to a score of 50% instead of leading me to another question. as for the wring question, it would direct me to the same scenario and give me 20%, but when I click the correct answer I am directed to a 50% score.