"Are you stupid? That plan is dangerous!"

Translation: SuQIp'a'? Qob nabvetlh!

[lawrencems]

given the use of the exclamation point, I believe he alternate answer with "Qobqu'" should also be accepted. This would also make this example my first encounter with a "choose all the correct answers" question that had more than one correct answer.

[mizinamo]

Did the system decide to give you Qobqu' in what it thought was a distractor sentence? (Possibly a result of the fact that Qobqu' is listed as an alternative form of Qob ... this courses uses the "forms" feature of Duolingo in a rather unorthodox way.)

We generally try to be consistent about translating -qu' into "very / extremely / really", or using an alternative word such as "huge" (versus "big"), so I'd prefer not to accept Qobqu' for merely "dangerous", exclamation mark or not.

[lawrencems]

Yep, one of the distractors only differed from the "correct" sentence in this way.

I appreciate the limitation you're putting on your exemplars of -qu', but then why have the exclamation point in the English? -qu' signals intensity, and that's what that punctuation conveys.

And too, it would have been very nice to finally have multiple correct answers on an exercise. :)

[mizinamo]

Ah, I misunderstood you earlier -- I thought that you did have two correct answers.

(Because there are two "blue-starred" answers possible; one with {SuQIp'a'} and one with {bIQIp'a'}. I thought it might have picked both of those to include in the multiple-choice exercise.)

[lawrencems]

I did have two correct answers, one with Qob and one with Qobqu'.