在周六上午

In Saturday morning ×

On Saturday morning

Mr Jack will come here on Saturday morning.

杰克先生会在周六上午来

对…生气

Be mad with ×

Be mad at

Don't be mad at me, like it's all my fault.

别生我的气，好象都是我的错一样

用到with的生气是

Be angry with

He was still a little angry with her.

他还有点儿生她的气

对...小心

Be careful about（小心某人 / 某物）

Be careful of（小心某人 / 某物）

You must be careful of what you say to him. He's quick to take offence.

你和他说话要多加注意，他特别爱生气

Be careful with（小心使用某个东西）

He's very careful with money.

他用钱非常谨慎

对...感到兴奋

Be excited in ×

Be excited about

I am so excited about taking Enfamily free class.How about you?

马上要去上英语家园网校的免费课啦，好兴奋，你呢？