He used to go mountain climbing with his friends.(改为一般疑问句)
he to go mountain climbing with his friends?
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.