将下列句子改为单（复）数形式There's a football match this afternoonwhere i

将下列句子改为单（复）数形式
There's a football match this afternoon
where is your mirror?
she wants to buy a doll
look at that colourful kiye
she was in the office a moment ago
those are our toy bears
the boys jump higher than the girls
here are some postcards for us
they are french boys
----what are their hobbies?---they like taking photos