how to implement fill in the blank in Swift : <p>"I _____ any questions."</p>

<p>I want to implement a quiz that clicks parentheses in that phrase and puts the correct answer by typing the keyboard in the parentheses.</p>

<p>Every time I get a letter, the underline also increases and I have no idea how to implement it.</p>

<p>Please advise me how to implement that in Swift.</p>
