What has to be done before the dam would be built the river had to be diverted. Workers drilled and blasted four diversion tunnels

Shakespeare’s language is considered english. old middle modern current

The correct word to complete the sentence

The knights of the round table were bound by the code of chivalry that called for loyalty to king, god, and lady.  in which set of lines from  sir gawain and the green knight  does sir gawain describe upholding this code?