Select the option that will improve the underlined part of the sentence. In case no improvement is needed, select 'No improvement required'. Unless they batted badly, they won the match.

Explanation

The correct answer is: Although they batted badly. Key Points Replace 'Unless' with 'Although' to make the sentence correct. 'Unless' is used to introduce the case in which a statement being made is not true or valid. Example-Unless you are fully vaccinated, you will not be allowed to return to work. 'Although' is used to introduce a subordinate clause that contains a statement that makes the main clause of the sentence seem surprising or unexpected. Example-Although he acts tough, he's really a nice guy. Here in the given sentence, It is said that They batted very bad but surprisingly they won the match. So, ' Although' is appropriate for the situation. Hence, the correct answer is option 1. Therefore, the improved sentence is: Although they batted badly, they won the match. Additional Information 'Since' is used with the present perfect to describe an action or situation that began in the past and continues in the present. Example-Since I met Astrid I’ve tried to learn German. 'Until' refers to up to the time of or till a specified time. It is used as a Preposition and Conjunction. Example-Let's play games until the party starts.