She needs to eat healthy food.He needn't hand in his homework today.(看问题补充）为什么上一句要加to,下一句不要加,eat和hand in不都是动词吗,怎样区分need到底是实义动词还是情态动词?

If she ______(need/needs）anything,she only______(need to/needs to/need/needs) ask. Food is very important everyone needs to eat well~````` hea she ___see a dentist A needs to B need to C needs D needed She needs to buy a novel.She also needs to buy a storybook.合成一句She needs to buy a novel and a storybook____ ____. She likes to eat frozen meat . she likes to eat beef语法对么 she gets paid to eat cakes翻译, She needs to read some books 改为否定句 She needs goes to school.(改为一般疑问句） she needs to do more exercise.（改为一般疑问句） she needs to do more exercise.（改为一般疑问句） she needs to improve her p--- of the arguments ''And she needs to t ___some very strong medicine.'' She look tired and( ）have a rest填needs还是needs to 要原因! Food is very important to our .everyone needs to eat well~`````英语完形填空~ She has something to eat.（便一般疑问句） ______ she ______ ______ to eat? She looks tired and ___ have a rest.A.need to B.needs to C.needs D.does to need