Check if the following exercises are done and make the missing ones:
Unit 2.2: ex.2 p.52; ex.5 p.53; ex.6 p.54; ex.7 p.54; ex.8 p.55 + Test jezelf
Unit 2.3: ex.2 p.58; ex.3 p.59; ex.4 p.60; ex.6 p.61 + Test jezelf
Unit 2.4: ex.6 p.67 + Test jezelf
Unit 2.5: ex.6 p.77; ex.7 p.77; ex.8 p77; ex.9 p.78 + Test jezelf