________ big or small countries, we will make friends with anybody who admits that there is only one China.

Zhang Guorong’s singing career _________ about over 20 years. It was his ________appearance at singing in public.

However, they can hardly blame me; it is ________ their own fault

How many years has life been on earth—______ years, I think.

How is the man injured in the earthquake—The doctor said if ________ in a proper way，he was likely to be saved.