根据对话内容，从方框中选择恰当的选项补全对话，其中有两项多余。

A：Nick!

B：I'm watching Animal World． It's my favorite TV program．

A：I need your help．

B：OK，Mom．

A：I have to buy some milk for your little sister．

B：No problem!

A：I'll be back in half an hour．

B：I see．

A：Yes，but don't make her cry(哭)．

B：OK．

A．What can I do for you? B．What are you doing? C．Could I play games with her? D．Could you please not watch TV now? E．Why do you look so tired? F．Could you please look after her for a few minutes? G．Could I do the dishes?