Select the most appropriate option to fill in the blank.
Keep away from bad company ______ you should regret later.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. lest.
- Should modal is always used with lest.
- The only auxiliary verb that can follow lest is should.
- Lest means with the intention of preventing (something undesirable); to avoid the risk of.
- This word has a negative meaning. Therefore, it should not be used with not.
- All other option does not take should as an auxiliary verb.
Therefore lest is the most apt. option to be filled here.