Marking difficult vocabulary
I have finished a language tree.
I find certain sections difficult.
Certain vocabulary is difficult - is there a way to mark difficult words into a list so that I could frequently revise it? (Add and remove words?)
Secondly, are there progressively difficult exercises.
For example, an exercise with sentences in different tenses,
different sentence construction,
variations on asking questions,
different tones (imperative, newspaper, indirect speech, formal, hypothesis),
combining sentences with comparators or conjunctions,
adding complexity using adjectives adverbs degree and so on....
thanks for reading