A Critical "Flaw" in Challenges/Quizzes

Question

When challenges/quiz questions are the jigsaw type, I mean the possible options are listed below and you pick the answer for every blank space,

The size of the blank space corresponds accurately with the length of the answer missing,

So it's pretty easy to guess precisely the correct answer without actually knowing the answer!

Answer 1

Everyone knows. I also posted same question two months ago.
Try to feedback [e-mail]

Answer 2

If you don't know the answer, I think it will be difficult for you to answer.. specifically in fill in the blanks!!!
In a discussion, I have known that SoloLearn outhority has flexibility in Quizzes!! As if everyone can learn, they can give answers!!

Answer 3

Some try to avoid this by artificially make different answers about equally long, like:

1.) yes!
2.) nop