根据汉语意思完成句子。
你先走，我随后跟上你。
Go on ahead, and I'll _______ _______ with you.
这是我遇到的最开心的事。
It's the happiest thing that ______ ever ______ ______ me.
不幸的是，她摔倒了并划破了膝盖。            
Unluckily, she ______ ______ and cut her knee badly.
别担心，我的手没什么大事了。
Don’t worry. There’s _______ ______ with my hand．
我认为你最好先问问他。
I think you’d ______ ______ him first.
我爸爸自去年退休后体重增加了。
My father has ______ ______ ______ since he was retired last year.
最重要的是，我们必须保持身体健康。
_______ ______, we must keep fit.
我认为这本书值得一读。
I think the book is ________ ________.