1 A:They got married secretly,and they were very happy.
B:They got married in secret and light up with pleasure.
1）secretly = in secret 秘密地
2）be happy = light up with pleasure 喜形于色
3）原来是并列句,改为并列谓语动词 got married 和light up .
2 A:She could be with her friends right now laughing at him.
B:She could stay with her friends at short notice laughing at him.
1）be with = stay with 和...在一起
2）短语：right now = at short notice 在短时间内,立刻
3 A:She said she would be there at seven o'clock,and he thought she
would keep her word.
B:She said she would be there at seven o'clock,and he believed she would not break an appointment.
1）think 和 believe 都有认为的意思.
2）短语：keep her word 守信,not break an appointment 不失信