A:why
B:which
C:that
D:where
①要正确对待科技发展带来的便利 ②应该珍爱生命,注重人际交往
③要充分运用移动互联网日夜学习 ④网络交往不能代替现实交往
—Where is your home,Betty?
—Let me ______ you on this map.
— ________ of them. Every one.