Whatdoes“spare”meaninthesentence“IguessG...ecauseI’vebeengood”?

Whatdoes“attachto”meaninthesentence“OnlywhenIleftearth,didIrealizethatIwassoattachedtomyfamilyandfriends”?

Whatdoestheword‘clutch’meaninthesentence,‘Togetthecargo,depresstheclutchpedal,putthegearleverintofirstgear,thendepresstheacceleratorpedalwithyourrightfoot,whileprogressivelyreleasingtheclutchwithyourleftfoot.’?A.踏板B.离合器C.刹车