helping the old and the weak is a good virtueand( )it is necessary for us to do so

helping the old and the weak is a good virtueand( )it is necessary for us to do so

题目
helping the old and the weak is a good virtueand( )it is necessary for us to do so
A.however B.otherwise C.still D.therefore
请选择并说明用法及它们区别是什么谢谢!
A.however B.otherwise C.still D.therefore
答案
这道题的正确答案为D therefore.However,意为无论如何,颇有些无奈的意思.举例来讲,I don't like my docotr,but however,I have to listen to him.我不喜欢我的医生,但没有办法,我必须得听他的.Otherwise,意为要不然,...
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