Thet are playing under the tree.Let's go and ____ them.

Some teachers are under the big tree.Let's go and help him 哪 let’s【】under the tree They are playing ------{happy} under the tree. They are under the tree.____ ____they? 1.There is a b___ under the tree.Let us go and sit on it. there is a （c ） under the tree.let is go and sit on it .There is b________ under the tree.Let us go and sit on it. There are few ____ in the fridge.Let's go and buy some pears 1 There are few ____ in the frideg.Let's go and buy some tom Let's go and join them,_____ let's sit under the tree改为否定句 改错：Let's waiting for him under the tree.