Since you guys brought home your instruments, practice k? Don't bring it back and let it rot or collect dust till the exams are over. Remember, just 15 minutes a day. That's enough. I'm sure you can spare 15 minutes if you can sit in front of the TV/computer for 2 hours.
For all seniors, remember to practice your symphonic band technique 108 to 116! And all those pieces too. Remember what Mr Lim said? We must prove to everyone (including him) that we can play pieces with weird rhythms like Samba De Loves You.
For Samba, use a metronome. You can find alot of metronomes online.
Costa, remember that bar 9 IS FASTER than the beginning. Bar 17 to 27, look at Mr Lim, as the part speeds up by ALOT. The transition in time signature from 118 to 119, look at Mr Lim too. Don't drag in 119. Oh, remember to practice playing at pp for the note one bar before 146 :)
I'm sure you can practice the others yourself.
All the best for your exams!
- sanzhi