The attempt and insistence on purchasing the DiaoyuIslands by Japan will ______ harm China-Japan ties．

Not until I came home last night　________ to bed

Our English teacher is often pleased ____what we do in class.

(2013·江西九校一模)A lot of lovers chose to get married on Dec. 12, 2012, ________ the date, the month and the year match.

I ________in the factory for 2 years when I was young.