Mike was usually so careful, ________ this time he made a small mistake [ ]

(2014·皖南八校联考)________ Yao Ming has retired from the NBA，the pleasure we have got by watching him play basketball at home and abroad will last long

In ________ Chinese culture, marriage decisions were made by parents for their children.

_____, I have to write the words on the paper becauseshe doesn’t know Chinese.

24 Only when the meeting began _______ that he had left his papers at his office