Multiple choice

Choose the correct option

  1. We won’t know how to do after we get the results

  2. When we get the results we won’t know what to do

  3. We won’t know what to do until we get the results
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Option C is grammatically correct and logically coherent, using "until" to show that receiving the results is the necessary condition for knowing what to do. Option A incorrectly uses "how to do" instead of "what to do", and Option B lacks proper punctuation and is less natural than C.

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