let him look after this cat.为什么用him?

let him look after this cat.为什么用him? Let is look after him.的意思 Let him ( ) after them very well look 还是looks 为什么要是give him this letter.为什么要用him let him He is tired.Let me go instead of him.为什么用him而不用he go? Let him not pick the flower 为什么用not let's help him with Chinese 为什么要用with 用take或takes填空：Let him ( ) a walk after dinner.It's good for Why ( ) the teacher let him ( ) the classroom yeserday after Let's have a look ---the new house ----him ______ tom's mother lets him look after the baby