Mother wanted to be a good provider, a role she ______ since her marriage to Father.

By the time my mother came back from work, my sister and I ________ supper and were waiting for her at the table.

The harder you ________， the better progress you ________.

If you dare do it, so         I .

His arms were sunburnt because he         in the sun all day.

Much to my anger, the camera I         didn’t work again.

She ____ necklaces with the help of Ms Sullivan when she ____ that she had made some mistakes.

By the time some scientists ____ the lost towns, they ____ an awesome historical site.

The school board listened quietly as Jack read the demands that his classmates ______ forward.

The first decade of the 21^st century ______ breathtaking, non-stop development in China.