2-- What a surprise! This is the best present I've ever received.

1-- Thank you for your love and care over the years. I love you so much.

2-- I love you, too.

1-- How about a dinner tonight? My treat.

2-- Actually. I prefer to eat at home, and then we'll have more time to have a chat.

1-- All right. Let me prepare the supper.

===================================
注解：
 
1.necklace项链  
2.received收到           
3.My treat我请客

===================================
译文：

1--妈妈，母亲节快乐！这是我给您的项链。

2--太让我惊喜了！这是我收到过的最好的礼物。

1--感谢您这些年来给我的关爱和照顾。我好爱您。

2--我也爱你。

1--晚上我们出去吃顿饭怎么样？我请客。

2--事实上，我更愿意在家里吃饭。那样，找们就能有更多的时间聊聊。

1--好吧，我来准备晚饭。