Adjective or adverb?

Gap fill exercise

Fill in the gaps
This text is really .
You can understand it .
Is it to learn English?
You can learn it if you start with exercises.
This exercise looks , but you can get it wrong.
Anyway, take it . Don't give up too .
Be careful with those cups, they break .
Did you find the exercise ?
I hope you could do it .
At least this last sentence is .