Question

Combine the sentences using an appropriate conjunction:
She must apologize to me first. I won't speak to her until then.
I won't speak to her _____ she apologizes.

• A. unless
  
• B. until
• C. when
• D. while

Answer 1

Answer: (A), (B)

unless
until

When we use a negative construction (won't/with not) in the main clause, until means 'not before'. That is, when we want to say that something will only happen if another thing is done, we may use the word 'until'. The same is indicated here. Therefore, the correct option is: until.