Select the most appropriate option that can substitute the underlined segment in the given sentence.
We shall rehearse thrice before the final performance at least we make errors in the dialogues.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. lest we make errors.
'At least' is used to refer to a minimum quantity or amount, which doesn't fit the intended meaning here.
'Lest' is the correct word to use when expressing the idea of doing something to prevent an undesirable outcome. It introduces a purpose or fear of something happening (in this case, making errors).
Hence, the correct sentence is: 'We shall rehearse thrice before the final performance lest we make errors in the dialogues.'