let's help them （改为否定句）为什么是 let's not help them

let's help them （改为否定句）为什么是 let's not help them Let's help them.改为否定句 Let's help them ( )the homework Let's help them clean the street.(改为一般疑问句） (按要求改写句子）题：1.Let's go to see them .(改为否定句 ）—— Let's not go t the elephants are in _now.let's help them 完型填空：Let's help them ( ) the cleanning. .Let them help us with English为什么用help Let me help you.改为否定句 There are't ___ to pick apples.Let's go to help them Let's help the children together and give them a chance to h Let's help the ___(生病的) children to make them happy.