用所给单词的适当形式填空
1. Father usually goes ________ (swim) at weekends with me.
2. I'd like ________ (ride) a bicycle to the park now.
3. We can go out now. It's a ________ (sun) day today.
4. Lily ________ (make) sandcastles with us now.
5. ________, (lucky) the poor girl lost her watch on her way to school.