_____he speaks softly is no proof that he is kind.
C
that做主语从句hespeakssoftly的引导词，没有实际意义。
Thegirlwhofoundtheringreceivedagenerous_____offivepounds.
Childrenwhoareover-protectedbytheirparentsmaybecome_____.
_____alltherepresentativesstillnotthere，themeetingwaspostponedforseveralhours.
Itwasnotuntilshehadfinishedallherwork_____.