参考：
What's up?
→ What's wrong?/ What's the matter?
Mom told us to stay at home.
→ Mom didn't tell us to stay at home.
I'm feeling really sad today.
→ 没有画线,假设加线部分为：sad,则：
How is your feeling today?
I'd like to take photos first.
→ - Would you like to take photos first?
- Yes,I would.
darren was very frightened.he didn't know what to do.
→ Darren was very frightened,and/so he didn't know what to do.Howisfeeling today?为什么用is不好意思，应该是：How are you feeling today？be动词随主语变化，此处为you，故用are