In the past, many rivers were seriously, but now they are cleaned up. (污染)
English ( speak) all over the world.
The red umbrella doesn't belong to me﹣﹣﹣﹣it's (she).
He was driving as ( fast) as possible.
I promise I ( send) you an email to explain all of these tomorrow.
The girl expected all her classmates ( come) to her party.