For nearly a millennium, Silk Road tradesmen on cross-continental voyages across the harsh Taklimakan Desert navigated

For nearly a millennium, Silk Road tradesmen on cross-continental voyages across the harsh Taklimakan Desert navigated to remote oases known only by memory and oral tradition and acquired the water necessary for the journey by filling a large leather bladder with several gallons of water, then allow it to sit in the water for at least thirty minutes, and let the bladder expand to over 4 times its original size.

Ⓐ then allow it to sit in the water for at least thirty minutes, and let
Ⓑ then allow them to sit in the water for at least thirty minutes, and let
Ⓒ allowing it to sit in the water for at least thirty minutes, and letting
Ⓓ allowing them to sit in the water for at least thirty minutes, and let
Ⓔ allowing it to sit in the water for at least thirty minutes, and let


OA C

Source: EMPOWERgmat