搜搜做题作业网答对给财富 1.（ ）she came in,l was writing a letter A.When B.While
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答对给财富 1.（ ）she came in,l was writing a letter A.When B.While C.since D.where
2.( )_____ you think you konw nothing,you begin to know something
A.where B.when C.before D.While
3.( )_____ there is no rain,lt's difficult to plant trees
A.where B.when C.which D.how
2.( )_____ you think you konw nothing,you begin to know something
A.where B.when C.before D.While
3.( )_____ there is no rain,lt's difficult to plant trees
A.where B.when C.which D.how
A B A
再问： 第三题为什么是A额，不太懂。。帮忙教下==
再答： 哪里没有雨 就很难种树
再问： 那when不可以表示假设么。。
再问： 第三题为什么是A额，不太懂。。帮忙教下==
再答： 哪里没有雨 就很难种树
再问： 那when不可以表示假设么。。
答对给财富 1.（ ）she came in,l was writing a letter A.When B.While
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