依次填入下列各横线处的成语，最恰当的一组是( )①消防工作必须立足于 ，从提高公众的防火意识做起。②即使现有的产品畅销,也要 ，抓紧技术储备与新产品开发。③如果我们不从小事做起, ，那些细小的苗头最终可能酿成大祸。

Hi John, how do you study _________ a test— By working with a group.

Clair felt that itwas a sweet victory ____________ by her neighbors.

“Mr Smith isn’t coming tonight.” “ But he _____.”

It was determination and willingness that made him a good actress. ——Yes, that is also______it takes to do anything very well.