Question

one of your friend was not keeping well lately .He is other wise a bright student due to his illness he unable to score good score in examination. He is feeling depressed of these ,how can we boast his morale

Answer 1

just say him to forget the past 
n say him that there are exams coming up so don't fell depressed about it

Answer 2

cheer him up that's the best thing u can do
help him out in studies share ur notes with him and explain so that he can compensate the classes
try to motivate him