Here are the sentences turned into negative or questions:

1) Clare did not play tennis this weekend. ( - )
2) David did not wash his car on Saturday. ( - )
3) Did Kate finish her homework? ( ? )
4) Did all the students answer the questions? ( ? )
5) Did Marta wait for the bus? ( ? )
6) Did Elisa call Sue to go out? ( ? )
7) Did John watch TV all day? ( ? )
8) Did Alex wash the dishes? ( ? )
9) Did Dorothy invite me to her birthday party? ( ? )
10) Julia did not clean the entire house this morning. ( - )

Feel free to ask if you need any more help!