英语选择（）harder on his science project,he would win the first p

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英语选择（）harder on his science project,he would win the first prize in the competiti
30.________ harder on his science project,he would win the first prize in the competition to be held in Harbin.
A.Would he work B.Should he work
C.Had he worked D.If he works
为什么不选A或D呢.

这是虚拟从句的用法.在if 引导的虚拟条件句中,若表示与现在事实相反,从句谓语用“动词过去式（be 的过去式用were ）,主句谓语用“would(should,could,might)+have+过去分词”；若表示与将来事实相反,从句谓语用“动...
再问：还是不大懂，既然should he work可以。为什么 would he work 不可以呢。。。
再答：因为只有当were, should 或had移到句首，才可省略从句的连词 if 并使用倒装语序。以后做选择题，遇到虚拟从句的倒装句，第一个单词不是should，were，had，直接排除准没错。

英语选择（）harder on his science project,he would win the first p 初二一道英语单项选择He is working on the math project this （）weekA.al Last night he stayed up late to work on his science project是 ( )My brother works harder _______ his English project.A.on Mr.Feilden first got the idea for his project when he starte .i( ) i would win the first prize of the competition he hopes he { } (win) the first prize in the match. 英语选择提问1、________ stole his camera while he is lying on the b 几道英语时态题1)--Can he win the first prize for running?--impossib The professor went on with his project ( ) his illness. He is the first man ___ (win) the golden metal. 懂英语的进来啊?一单词拼写1.He ______ (win) the first prize.He is the ___