Correct answer as given: These fruit seem sweet. Incorrect -- Subject /verb don't agree!) Should be: "These fruitS seem sweet.." (or "This fruit seemS sweet"... if you are thinking of a group of fruits as one unit)
The notes say that "asta" and similar words are only used in some parts of the country. Do you know if they are used in Moldova?
"asta" is singular for "this"...
edit: sorry, I misread the comment, will look into it now.
edit 2.0: I modified the wording format as there is nothing wrong with using the regional forms, everyone uses them in common language and it's not really specific to any parts of the Romanian speaking states.
If you click on a (colored) lesson pod icon, there will appear a "Start" button with "lightbulb" and "key" icons. Click on the lightbulb and the "Tips and Notes" will come up. Cu placere!