need做实词和情态动词有什么区别The students were very glad that they_________their papers last weekend as the teacher was away on vacation.C.needn't have handed in D.didn't need to hand inD .为什么选 C 不行?

need做实词和情态动词有什么区别The students were very glad that they_________their papers last weekend as the teacher was away on vacation.C.needn't have handed in D.didn't need to hand inD .为什么选 C 不行? need做实意动词和情态动词的区别 need做情态动词和普通动词有什么区别?he needs to telephone himhe need telephone himhe needs waterhe need water以上都正确吗? need做情态动词时什么意思 啊he need to eat food和he need eat food有什么区别?need做情态动词时什么意思?怎么看出这两句里哪个是情态动词he need to eat food和he need eat food有什么区别?怎么看出这两句里 need to do 和need（情态动词）用法上有什么区别 need在做助动词和在做情态动词时有什么区别? need的实义动词和情态动词有什么区别? need在做情态动词和使役动词时,含义有什么不同? 情态动词和情态助动词有什么区别 关于英语need的用法need做情态动词的时候和should 做情态动词时的区别?need做实意动词时和need做情态动词时的区别? need做情态动词 need什么时候做情态动词、实义动词need有时候做情态动词,有时候做实义动词,有什么标志吗,比如说后面跟什么形式 情态动词都有什么?加动原?need和have是不是?need to是还是need是? 情态动词和谓语动词有什么区别? need 作情态动词和作动词的区别如上 问下 need 情态动词和实意动词的区别 should和shall在做情态动词时有什么区别? will 作情态动词和助动词用时有什么区别?will 既可以做情态动词又可用作助动词,有什么区别吗?请分别举例说明,