TOEIC Reading 5 Exercisee 21

<p dir="ltr">Let’s look at the noun clause:</p><p dir="ltr">“that they had the right to _______ extend the subscription for another year or cancel the subscription right away.”&nbsp;</p><p dir="ltr">Here, the coordinating conjunction “or” connects two verbs in parallel structure: “extend” and “cancel.” The blank should be filled with a word that can pair with this coordinating conjunction “or.” Only (B) "either" can pair with the word “or.”&nbsp;<br></p><p><span><span>(A) "</span><span>not only"</span><span> should pair with “but (also).”&nbsp;</span></span></p><p><span><span>(C) "</span><span>neither"</span><span> should pair with “nor.”</span></span></p><p><span><span>(D) "</span><span>both"</span><span>&nbsp;</span></span>should pair&nbsp;<span><span>with “and.” </span></span>​</p>