2019年mba考试英语模拟题——连词1323

{01}Not once has she given in to any difficulty in her life and that"s _____ she is a strong­willed woman. A.why B.when C.because D.where 解析：
试题分析：考查表语从句。句意：她一生中从未向困难妥协过一次，这就是她是一个有着坚强意志力的女性的原因。is后跟从句作表语，why后跟原因，because后常跟结果。“she is a strong­willed woman”是“Not once has she given in to any difficulty in her life”带来的结果，故选C。
本题选C。
{02}______ children believe they can succeed, they will never become totally confident． A.If B.Since C.Once D.Unless 解析：
试题分析：句意：除非孩子们相信他们能够成功，否则他们将不会完全有自信。If如果；Since自从；Once一旦；Unless除非，选D。
本题选D。