1.    These people are all doing things that make them happy. (P17) 这些人都在做让他们高兴的事件。
make+宾语+宾语补足语: 
其中宾语补足语可以由名词,形容词,非谓语动词充当。
My father wants to make me a doctor. 
He made London the base for his revolutionary work. 
It'll make me so happy if you'll accept it.