perhaps no other decade has contributed more to the development of the truck than the 1950s. petrol engines and rudimentary pre-chamber-combustion diesel engines were superseded by efficient direct-injection diesel engines.

How would the previous sentence be correctly capitalized?
Answer: Perhaps no other decade has contributed more to the development of the truck than the 1950s. Petrol engines and rudimentary pre-chamber-combustion diesel engines were superseded by efficient direct-injection diesel engines.
sometimes it doesn't have to be complicated to be good.

How would the previous sentence be correctly capitalized?
Answer: Sometimes it doesn't have to be complicated to be good.
the agreement means that the lns group buys all shares of gms in 2017.

How would the previous sentence be correctly capitalized?
Answer: The agreement means that the LNS Group buys all shares of GMS in 2017.
when the long path work has been done to the point that it bores, depresses, or satiates him, admission must be made that he had better leave it for a while.

How would the previous sentence be correctly capitalized?
Answer: When the Long Path work has been done to the point that it bores, depresses, or satiates him, admission must be made that he had better leave it for a while.