Content creation

Hi - In the last few days I've been unable to replace some of the videos in my interactive video activities. I copy from my Vimeo Pro account the video file URL and paste it in 'step 1' on the upload/embed video section as I have done for months and months with no issues. Now when I do this I get an error "Found No Video Players That Supports The Given Video Format" - I'm trying to link to content on my Vimeo account, the account is Pro so it has and should continue to support all external video sources. Any advice please?

I'm trying to make a simple exercise drill to teach Hebrew syllables. The user is presented with two syllables (probably as images given the difficulty of working with Hebrew text). They hear the syllable (audio file). They have to choose the correct syllable and then move to the next question. I've tried various content types and nothing is quite doing the trick. 

Is there a content type where the question is audio and the answer is in images that the user clicks?

In Multiple Choice option, how do you add question?

it's driving me crazy!

Help!!!