Identifying Sentence Errors - Confused over a certain question

Test Preparation SAT Preparation
1

<p>This question appears on the second sparknotes practice test:</p>

<p>The teachers’ strike continued(A) until someone came up with(B) </p>

<p>a plan where(C) the union could work out its(D) differences with</p>

<p>the school board. No error(E)</p>

<p>The error is in 'C' which is fine , but what about 'A'? Shouldn't it be Past Perfect ' had continued ' as it is an action that occurred before that someone came up with an plan?</p>

2

<p>No, it’s just C. While A could be “had continued” there is nothing incorrect about just “continued”</p>