Theyounglady_____wemetyesterdayisournewmathsteacher
为什么不能“whose”而是用“/”定语从句中什么情况可以不填?什么情况用“whose”
Whydidn'tyoucomehereyesterdday?
BecauseI_______Iwenthomethedaybeforeyesterday
为什么选“hadn'tbeentold”?