The word prodigious means Immense.
The word desponding means Hopeless.
Answer:
One way that effectively helps is to recreate some conditions. For example, use the same pen, or chew the same flavor of gum. This will help you recall more information because it brings you back to the memory when you were studying the answers.
Explanation:
You could have had trouble answering these questions because of an encoding or retreival failure (failure to remember because there weren't enough cues to trigger your memory). You may have had an encoding failure because while you were distracted while you were studying. (Dividing your attention and trying to multi-task is the most common cause of encoding failure).
Answer:
Its okay to replace an government when they aren't really doing anything.
Answer:
I believe the answer is that the sentence as correct as it is.
I hope I helped, please correct me if I'm wrong though!