I spent half an hour working out the math problem.这里的working 还有working out前边用加to吗?这句话翻译成?

I spent half an hour ___(finish) my homework. I spent half an hour in doing my homework I spent half an hour swimming 这句话对吗? I spent half an hour on my homework yesterday.（保持原意l ( )half an hour ( )my homework skirt. 英语I spent half an hour getting to the shop.改为同义句：( )( )( )half an hour( )( )to the shop. I spent half an hour getting to the shop改为同义句 I spent half an hour on my homework yesterday.（保持原意） I spent half an hour geting to the shop.的同义句 I spent half an hour writing the letter 改为同义句 I spent half an hour finishing ___ work.这里要填the吗?为什么? I spent half an hour arriving at the top of the mountain.同义句 I spent _____ watching TV.A）one and a half hourB）one and half an hourC）one hour and a halgD）a half hour he spent half an hour swim.=It( )( )half an hour( )( ). I spent half an hour arriving at the top of the mountain.同义句___ ___ me half an hour ___ ___ to the top of the mountain . I spent half an hour cleaning my room.（同义句转换）It （ ）（ ）half an hour （ ）（ ）my room. they spent half an hour on talk是什么基本句型 We spent half an hour writing it.(%u63D0%u95EE%uFF09 I spent an hour ___________ my homeworkquick!