TOEIC Reading 5 Exercisee 291

<p dir="ltr" style="text-align: justify;">This sentence is a complex sentence with the main clause and the adverbial clause.</p><p dir="ltr" style="text-align: justify;">The main clause is "This exclusive club will not grant memberships to anyone".</p><p dir="ltr" style="text-align: justify;">The adverbial clause is "_____ applicants are recommended by a current club member".</p><p dir="ltr" style="text-align: justify;"><span><span style="">The blank should be a subordinating conjunction that introduces the adverbial clause.</span></span></p><p dir="ltr" style="text-align: justify;">Only (B) "unless"&nbsp;is a subordinating conjunction. Therefore, (B) is the answer. "unless" is used here to introduce a condition.&nbsp;<span><span style=""><br></span></span></p><p dir="ltr" style="text-align: justify;">(A) "except for"&nbsp;is incorrect since this is a preposition phrase.&nbsp;<br></p><p dir="ltr" style="text-align: justify;"><span><span style="">(C) "</span><span style="">or else"</span><span style=""> is incorrect because it is not a subordinating conjunction.</span></span></p><p dir="ltr" style="text-align: justify;"><span><span style="">(D) "but" is incorrect because it is a coordinate conjunction.</span></span></p>