Need to be able to sing these 2 songs by wednesday opening ceremony

I Lay my Love On You - Westlife

Just a smile and the rain is gone
Can hardly believe it (yeah)
There's an angel standing next to me
Reaching for my heart

Just a smile and there's no way back
Can hardly believe it (yeah)
But there's an angel calling me,
Reaching for my heart

I know, that I'll be ok now
This time it's real

I lay my love on you
It's all I wanna do
Everytime I breathe I feel brand new
You open up my heart
Show me all your love, and walk right through
As I lay my love on you

I was lost in a lonely place
Could hardly believe it (yeah)
Holding on to yesterdays
Far, far too long

Now I believe its ok cause this time it's real

I lay my love on you
It's all I wanna do
Everytime I breathe I feel brand new
You open up my heart
Show me all your love, and walk right through (oh yeah)
As I lay my love on you

I never knew that love could feel so good

Like once in a lifetime
You change my world

I lay my love on you
You make me feel brand new
Show me all love, and walk right through
As I lay my love on you

I lay my love on you
It's all I wanna do
Everytime I breathe I feel brand new
You open up my heart
Show me all your love, and walk right through
As I lay my love on you

I lay my love on you
You make me feel brand new
You open up my heart
Show me all your love, and walk right through
As I lay my love on you

As I lay my love on you

Ai Hen Jian Dan - David Tao

忘了是怎麼開始
也許就是對你有一種感覺
忽然間發現自己
已深深愛上你, 真的很簡單

愛的地暗天黑都已無所謂
是是非非無法決擇
沒有後悔為愛日夜去跟隨
那個瘋狂的人是我...喔~

[--- Chorus ---]

I love you
無法不愛你baby
說你也愛我

I love you
永遠不願意baby
失去你

[---------------------------------------]

Verse 2:

不可能更快樂, 只要能在一起
做什麼都可以
雖然世界變個不停
用最真誠的心, 讓愛變的簡單

愛的地暗天黑都已無所謂
是是非非無法決擇
沒有後悔為愛日也去跟隨
那個瘋狂的人是我...喔~

[--- Chorus ---]

I love you,
一直在這裡陪
一直在愛你

I love you, oh yes I do
永遠都不放棄,
這愛你的權利

[---------------------------------------]

Verse 3:
如果你還有一些困惑 Oh no~
請貼, 我的心傾聽
聽我說著愛你,
Yes I do

[--- Chorus ---]

I love you, Oh yes I do
一直在這裡陪,
一直在愛你

I love you
永遠都不放棄,
這愛你的權利

*Guys nid sing the words in yellow only for the mandarin song

How to remember all the parts I'm supposed to sing leh?