1Allpeople,____theyareoldoryoung,richorpoor,havebeentryingtheirbesttohelpthosetheyneedsincethedisease.(whether)
为什么不用nomatter
2Wasthattheheadmasterwhowalkedby?
______
AItmustbethatBItmustbehimCItmustbeitDItmusthavebeenhim(选D,为什么不选B)
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