1、Catch [someone] out of the blue：you are surprising someone
2、Ditto：me too
3、Like a deer in the headlights：you are utterly surprise
4：Slip one's mind：to forget sth.
5、It's hard to sum up in one sentence：It is long story
6、Falls on [a date]
e.g. Christmas is held every year on December 25th, this year that falls on a Tuesday.
7、From the bottom of one's heart：all of from my heart
8、You took the words right out of my mouth：you said exactly what I want to say
9、Euphoric： extremely happy and excited e.g : A euphoric mood
10、[someone's] eyes light up like jack-o-lanterns：happy and surprised by something
11、Pay one's homage：pay honour to
12、Paint the town red： have a good of it or have fun or have a ball or on top of the world (Euphoric)
1、Did Xiao Gao and Jing Jing's parents like the gifts?
2、Does the whole world celebrate Children's Day on June 1st?
3、What does Xiao Gao and Jing Jing do after they have paid their homage?
1、Yes, they did. They caught out of the blue
2、No. there is another Universal Children's day on Nov.20th (e.g U.S.A)
3、They painted the town red after they have paid their homage