The Tablet Unearthed by the Archaeologist Revealed an Ancient Culture's

The tablet unearthed by the archaeologist revealed an ancient culture's project plan, however the sands of time had erased much of the information that the table once contained. Unlock the ancient project's secrets by completing all of the information missing from this fragmentary record.
$$\begin{array} { | c | c | c | c | c | c | c | } \hline \text { Activity } & \text { Predecessors } & \text { Time } & \text { ES } & \text { EF } & \text { LS } & \text { LF } \\\hline \text { A } & \cdots & 7 & & & & 12 \\\hline \text { B } & \cdots & 8 & & & & \\\hline \text { C } & \text { A } & & & & 13 & 20 \\\hline \text { D } & \text { A } & 11 & & & 12 & \\\hline \text { E } & \text { B } & & & 14 & 17 & \\\hline \text { F } & \text { B } & 11 & & & & \\\hline \text { G } & \text { D, E } & 6 & & & & \\\hline \text { H } & \text { C } & & & & 20 & \\\hline \text { K } & \text { F } & & & 29 & & \\\hline \text { L } & G , H , K & 9 & & & & \\\hline\end{array}$$