阅读短文，用不定代词或根据所给提示填空。

Dear Lisa,

Thanks for your letter. you (enjoy) yourself in Shanghai last week? Today you did interesting, didn't you? Today I did at home. I just (relax). For lunch I didn't eat ， either. Why? Today Mom and Dad (not be) at home. I couldn't cook by myself. Now I (miss) Mom very much. I ... Oh, I hear calling me. I must stop writing to you.

Yours,

Anna