根据天气给出活动建议 — 英语情景题

情景对话：今天是下雪天（snowy），Lily 想出门骑自行车。请补全对话空位处（每空一词，第(3)空有中文提示）。 Lily: Mum, can I ride a bike outside? Mum: No, it is (1)________ today. Lily: Oh, it's so cold. What can we do? Mum: (2)________ (3)________（第(3)空提示：留）at home and read a book. Lily: OK, good idea!