Topic Missions
Use Down Arrow and Up Arrow to move through topic missions. Press Enter to start the highlighted mission. Press Escape to return to Mission Control Center.
Up or Down: move through missions. Enter: start. Escape: return to Mission Control Center.
About this practice
Numbered parts practice related skills in a recommended order. You can open any part. Each title tells you what you will practice.
Open practice: Nothing is locked, and no passing score is required.