$7$:$04$

piane. $($IL$)$ I ne cud was the mascor or an oil company, and Turner convinced the company that flying the cub around would be a good advertisement. $(13)$ The Humane Society wasn't very happy about this idea, and they convinced Turner to make sure the lion cub always wore a parachute.

$(14)$ During the $1920$s$,$ the U$.$S$.$ Post Office developed airmail. $(15)$ Before airmail, the post traveled on trains and can take weeks to reach a destination. $(16)$ Flying for the post office was dangerous work. $(17)$ Early pilots didn't have sophisticated instruments and safety equipment on their planes. $(18)$ Many of them had to bail out and use their parachutes when their planes iced up in the cold air or had other trouble.

What change should be made to sentence $1?$

Add a comma after Wright

Change have flown to flew

Change first to $1^{st}$

Delete the comma after $1903$

Finish

B

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