Does anyone know what's the deal with Gengo?

I just signed up and chose to translate English into my native language. The test was very weird. All the options were synonymous to each other and all technically correct, so i chose the ones I thought sounded the best. I got 1/5 and they don't share any aditional info (sites policy). I thought it might be a good match for me, but now I'm just confused. 😦😦