Hello,thanks a lot for your attention,unfortunately my dad is not okay,and I have intense anxiety.I could not concentrate on my studies.By the way,three units were finished(11th,12th & 13th).Many new words were advantage for me.I forget vocabs very easy this days.
salamzaban:
we can understand how you feel,
my mother was sick a few months ago, please take care of him and yourself alot
try to listen to the audio files whenever you have time