Australia is in the south of the earth so the seasons there are the opposite of .

We will never forget what happened_____ the afternoon of May 12, 2008. [ ]

He walked _________ fast for us _________ catch up with（赶上）。

Where is China?—It is_______ the east of Asia and _______the west of Japan.[ ]

Water is much more precious than electricity, for the water for drinking is__________.