How nice of you!
How is it that you're always so full of energy?
How early do I have to make a reservation to qualify for the discount?
How to deal with environmental pollution is a serious matter.
How could I be a robot? Robots can't dream.
I'd like to get a bank loan; how do I go about that?
I wonder if Tom realizes how lonely I am.
Tom came up with various ideas on how to make his business more successful.
He soon grows tired of a thing regardless of how much he liked it to begin with.
It takes only a short time to learn how to explain things to students. It takes much longer to learn when not to.
She wrote to him to tell him how wonderful he was.
What really surprised me most was how many hours a day Tom slept.
What surprised me most when I first entered college was how few of my classmates knew how to study efficiently.
There is an urgent need for understanding how climate change will affect our lives.
I must calculate how much money I'll spend next week.