QUESTION: Fix punctuation: At least two identical FBDer must be installed to a boot system
ANS: At least two identical FBDer must be installed to a boot system.

QUESTION: Fix punctuation: 1 We still lacked the support of the class which is the vanguard of the revolution
ANS: (1) We still lacked the support of the class which is the vanguard of the revolution.

QUESTION: Fix punctuation: Close 19 inches TV monitor size
ANS: Close 19 inches, TV & monitor size

QUESTION: Fix punctuation: Australia and Thailand December 15 February 9
ANS:
Australia and Thailand (December 15 February 9).