________ there are living creatures in the outer space as those on Earth hasn't been proved until now.
In a modern society full of fierce competitions, _______a person does is not always the same as _____he says.
_____ Mr Smith is well again, he can go on with his work.
The single invention of the computer _______many new professions.
The lazy waiter _______to his boss that he had _______the table.
How do you _______the show”s success?