1.Can I help you?同义句 2.Must he eat up all the bread?改成否定句

题目

1.Can I help you?同义句 2.Must he eat up all the bread?改成否定句
第二个问题的开头回答是No,然后后面填两个词

答案

1.= May I help you = What can I do for you
2.Must he eat up all the bread?
否定回答：No,he needn't .（千万不能用 No,he mustn't.）
No,he doesnt have to .