Song in Family and friends Level 1 Unit 15 _ It's a wonderful day! | Let's sing karaoke!

The songs in Family and Friends are excellent aids for children learning English grammar. I have created karaoke effects for each of these songs, which will greatly facilitate singing along with them.
歌曲是为学习语法设计的。我制作了卡拉OK效果，学唱容易多啦！一起唱起来！
Grammar points of this unit: (本单元语法：用 祁使语气 提建议）

1. Make suggestions with Let's ...
• Okay. We’re all ready. Let’s go.
• Let's make a cake.
• Let's not argue.
(In British English, you can also say: Don't let's argue.)
✗Don't say: Let's don't argue.
•Let's introduce ourselves.
✗Don't write: Lets introduce ourselves.

2. Make suggestions with other imperatives
• You are ill. Go to the doctor.
• Don't forget your schoolbag.
• Make sure you get your car serviced before you go on a road trip.