来自何骏的问题
Thereisablackboard____ourclassroom.Ourteacherwasstaudingtheblackboardatthistimeyesterday.A.infrontof;inthefrontofB.inthefrontof;onC.inthefrontof;infrontofD.infrontof;on
Thereisablackboard____ourclassroom.Ourteacherwasstaudingtheblackboardatthistimeyesterday.
A.infrontof;inthefrontofB.inthefrontof;onC.inthefrontof;infrontofD.infrontof;on
