MaryadvisedthatIshou的精选

问题详情：单项填空在A、B、C、D四个选项中，选出可以填入空白处的最佳选项。MaryadvisedthatIshouldbuy______iPadformysonasabirthdaypresent.Youngpeoplearedreamingaboutowning______.A.a;itB.a;oneC.an;oneD.an;it【...