要我打开窗户吗？这里有点热。

___Shall ___I open the window? It's a bit warm in here.

天气真好。我们去公园散散步好吗？

It's a lovely day. ___Shall ___we go for a walk in the park?

要我帮你提那些沉甸甸的袋子吗？

___Shall ___I help you with those heavy bags?