It is raining .
1It doesn't matter so much whether he works hard;the question is whether he works ______.
The secret of success is to be ______ existence,to be always calm,and to let each wave of life wash us a little farther up the shore.
Chinese President Hu Jintao had had ______brief meeting with the three astronauts,who were going to board______country's third manned spacecraft Shenzhou Ⅶ on September 25,2008.
As the twentieth century came to a close,the raw materials for a great national literature were at hand,waiting ______.
—What were you doing when I rang you this morning?—I was occupied ______ the housework and kept my son occupied______ his homework.