I still hae a few doubts on the Beowulf as well as on street directions. I really hope you can check these sentences.

1) The breath of the dragon flared up and the ground boomed.
2) Beowulf summoned the strength to swing his sword so hard that it snapped against the dragon's head. As it broke, it struck the snake less strongly than required.
3) Wiglaf addresses him as bold-tempered chieftain, famed for his deeds.
4) Can you explain me the difference between "the bakery is on Market Lane and the bakery is in Market Lane"?
5) Can you say : turn into OR onto Market Lane
6) Cross the road on the zebra crossing, go past the level crossing?
7) Walk straight head for 100 metres?
On the right is a bakery OR there is a bakery on the rigt.

1) Did the ground do the booming? The sound booms.

2) Is there both a dragon and a snake involved? Unclear whether you are referring to one or two animals.

3) Wiglaf addresses him as a bold-tempered chieftain, famed for his deeds.

4) "On" indicates it is located at that street, while "in" indicates that it would be blocking traffic by being in the middle of the street.

5) Either

6) Unclear what this refers to, so I cannot respond.

7) Either, but typo on "right."