Mr.Bush is on time for everything.How ________ it be that he was late for the opening ceremony.
There was ____ to prevent the accident.
Yesterday Mr. Li finally bought his own house, _______ is a hospital.
My brother's purse, _______ he put ¥1,000, was missing on the bus.
The football match _______ the students competed yesterday was very wonderful.
The reason _______ he was late again was that he was caught in a traffic jam in the rush hour.