They both mean the same thing.1-1-A)They were both fast asleep in their cots.
1-1-B)They both were fast asleep in their cots.
The second one is grammatically incorrect. It should be: "No banks could ever pay off their creditors."1-2-A)No BANK could ever pay off its creditors.
1-2-B)No BANKS could ever pay off its creditors.
The two sentences mean the same thing.Q2. Can I change the sentence A into B ? And if A can be changed into B, each sentence has the same meanings?
A) I tapped him on THE shoulder. (I found this in my dictionary.)
B) I tapped him on HIS shoulder.