根据句子意思，用括号中所给单词的正确形式填空。

1．The 2008 Olympic Games will be           （hold）in Beijing．

2．There are no calories in water．We can drink it              （with）getting fat．

3．Peter and Kate paid for it                （they）．

4．People in the west often think that the number thirteen is             （1uck）．

5．Monday is the          （two）day of a week．