circle the odd one out
1 A.ride B.fly C.fast D.safe
2 A.eco-friendly B.drive C.ship D.vehicle
3 A.bus B.train C.yours D.mine
4 A.hers B.our C.do D.might
5 A.will B.shall C.autopilot D.pilotless
6 A.driver B.driverless C.submarine D.sky
7 A.underwater B.ocean C.helicopter D.spaceship
8 A.plane B.boat C.useful D.dangerous
9 A.comfortable B.convenient C.power D.gasoline
10 A.petrol B.oil C.fast D.safe