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一道英语选择,说下选哪个,并说明理由

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/16 00:17:33
一道英语选择,说下选哪个,并说明理由
The survey found that young people would improve their job prospects _______ they studied business studies,maths,English and physics or chemistry at A-level.
A until B since C whereas D if
D.if 如果(引导条件状语从句)
句意:调查发现,如果年轻人学习了商业研究,数学,英语及物理或化学并达到A级,
他们就会提升自己的就业前景.
(until 直到 since自...以来 whereas 然而,反之 )这三个都不合适.