______some students are able to find employment after graduation, others will have to return to school and earn an advanced degr

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问题 ______some students are able to find employment after graduation, others will have to return to school and earn an advanced degree.

选项 A、Since
B、While
C、Because
D、If

答案B

解析 有些学生毕业之后能够找到工作,而其他学生只好返回学校获得更高学历。本题考查连词的用法。since表达因果关系,意为"既然"语气要比because稍微弱些;while表达转折关系,意为"而,然而";if引导条件状语,意为"如果"。本句子中"有些学生"和"其他学生"形成一种对比关系。另外,while作为连词,还可以解释为"当…的时候"。参考例句:(1)He went out,while I stayed at home.(他出去了,而我却留在家里)。(2)While the teacher explained the text,the students listened attentively and took notes.(教师讲解课文时,同学们认真地听讲并且做笔记)。
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