By no means true that all native speakers of English know their own language very well．

—What a beautiful place! —Is this the first time that you _____ here?[ ]

Competition, they believe ________the national character rather than weaken it.[ ]

Could you please tell us about some good ways to learn English?— My suggestion is that reading often and writing regularly ________.[ ]

I have never been to London, but it is the place ________.