How soon will you start your journey—–I’m not sure. I haven’t decided ________.

I know it’ll _____ me much time to practice it, but I’m sure I can learn a lot from it.

How long will it _____ man can find another planet like the earth?— Ten years or longer.[ ]

I think computers are very useful. They can help us get much _______ on the Internet.

________—It is raining all the time．