_____,the tears ran down her cheeks.A.Singing \x05B.While singing \x05C.As she sang D.When sang

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_____,thetearsrandownhercheeks.A.Singing\x05B.Whilesinging\x05C.AsshesangD.Whensang_____,thetearsran

_____,the tears ran down her cheeks.A.Singing \x05B.While singing \x05C.As she sang D.When sang
_____,the tears ran down her cheeks.
A.Singing \x05B.While singing \x05C.As she sang D.When sang

_____,the tears ran down her cheeks.A.Singing \x05B.While singing \x05C.As she sang D.When sang
选择C
B——while作为开头,是尽管的意思.
D——前后主语不一样,不可以省略.