Question : Select the most appropriate option to improve the underlined segment in the given sentence. If there is no need to improve it, select ‘No improvement required’.
This lock will not open unless you don’t use the correct code.
Option 1: didn’t use
Option 2: No improvement required
Option 3: are using
Option 4: use
Correct Answer: use
Solution : The fourth option is the correct choice.
When we observe the sentence, we get to know the conjunction "unless" is used. We use the conjunction "unless" to mean "except if". The clause that follows "unless" is a subordinate clause, and it needs a main clause to make a complete sentence.
Therefore, the correct sentence would be: " This lock will not open unless you use the correct code. "
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