用所给单词的适当形式填空。
1. Susan swims very well. She is a good ______. (swim)
2. Lily always helps her mother clean the house. She is very ______. (help)
3. My brother often ______ (play) basketball on Wednesday afternoon.
4. Thank you very much for ______ (write) to me.
5. Every day Millie spends half an hour ______ (read) English.