—Excuse me,Mum.When can we have dinner?—Not until it in half an hour.
问题描述：
—Excuse me,Mum.When can we have dinner?—Not until it in half an hour.
A.is prepared B.will be prepared
C.has been prepared D.was prepared
答
A,按照主将从现,we cannot have dinner until it is prepared in half an hour