Let me give you a hand

第一组图片中的内容：

All right. but I won't be far away just in case you need a spot of help.

Are you sure you don't need a hand?

第二组图片的内容：

Let me give you a hand.

第三组图片：

Can you help me,please?

Of course I can, and we'll ask grandpa to lend a hand too.

第四组：

You've done us a big favor.

Zak has a favor to ask you.

一：请求帮助：

Can you help me please?

Can I ask a favor?

Will /Could /Would you do me a favor ,please?

Could /Can you give me a hand?

二：给予帮助：

Do you need any help?

Do you need a hand?

Let me give you a hand.

I'll give you a hand with that.

三：

You've done us a big favor.

You're a great help./helper.

You've been a great /big help.

You've been very helpful.

Thanks for everything.

Thank you so much.