The sentence given is intended to express the concept that everyone is prone to making mistakes at certain times. The options provided are:
To select the appropriate word, consider the meaning and connotative use of each option:
- apt: This means having a natural tendency or being appropriate in the circumstances, but it doesn't quite fit the sentence expressing occasional error-making.
- likely: This word is used to describe something that is probable or expected; it fits well when describing the probability of an event occurring, such as making a mistake.
- considered: This means thought about carefully, or regarded in a certain way. This does not suit the context of being prone to mistakes.
- able: This denotes having the ability or skill to do something, which again does not fit the context of making mistakes occasionally.
Based on the analysis, the correct choice is likely, as it accurately conveys that everyone has the potential, or it is within reason, to be mistaken sometimes. Therefore, the completed sentence is:
At times, we are all likely to be mistaken.