I’ve only been out of ________ school a couple of years, but I’ve forgotten all ________ math I learned.
You must apologize ______ your mother ______ your rudeness.
Her father retired _______ poor health last year.
— Did you enjoy yourself at the dinner party? — Yes, I’ve never been to________one before.
Many important leaders of different countries______ in the opening ceremony of the 29th Olympics held on August 8,2008.
I dropped my key in the garden, but luckily my mother ________it.