前面说：we fly kites in the park.后面：----- makes us happy.中填it还是t

前面说：we fly kites in the park.后面：_____ makes us happy.中填it还是them.
At 5p.m.,we go home together.We talk about today's things on the our way home.
我要表达的意思是：下午5点,我们一起回家.在回家的路上我们谈论关于今天的事.
请看看这英语句子中有无错误.
一段时间后,能这样表达么：After some time.
请分开回答.