CALL ON - To visit (a person) (किसी व्यक्ति से मिलना)
CARRY ON - To continue or proceed as before (जारी रखना)
GET ON -
1. To board or mount a vehicle (सवार होना)
2. To progress, advance (आगे बढ़ना)
HOLD ON
1. To grasp or grip firmly (जोर से पकड़ना)
2. To wait (also on phone) (रुकना)
KEEP ON - To persist or continue (आगे बढ़ना)