Same meaning?
The South / Kazai government was supported by another Belgian mining company , which received concessions from the new state in return for financial support .
The South Kasai government was supported by , another Belgian mining company , which received concessions from the new state in return for financial support .

Answer: yes

Same meaning?
A functional magnetic resonance imaging ( fMRT ) study found that deaf participants use the primary auditory cortex as well as the visual cortex when they observe sign language .
A functional magnetic resonance imaging ( fMRT ) study showed that deaf participants use the visual cortex as well as the primary auditory cortex when they observe sign language .

Answer: yes

Same meaning?
The construction of the new stadium was held for 4 years and was inaugurated on 21 August 1974 .
Construction of the new stadium were held for 4 years and on 21 August 1974 was inaugurated .

Answer: yes

Same meaning?
In these he already shows an adaptation to the Roman style , especially that of Michelangelo , whose ceiling had just been completed the Sistine Chapel .
In these he already shows an adaption to Roman style , especially that of Michelangelo , whose Sistine Chapel ceiling had just been completed .

Answer:
yes