A great transition marked the 20th century for mankind.
A great transition marked the 20th century for mankind.
The 20th century marked a great transition for mankind.
The 20th century marked a great transition for mankind.
A great transition for mankind marked the 20th century.
A great transition for mankind marked the 20th century.
For mankind, a great transition marked the 20th century.
For mankind, a great transition marked the 20th century.
Correct Answer:
The 20th century marked a great transition for mankind.
The 20th century marked a great transition for mankind.