a和the有何区别His mother is making a meal.和Their parents are making the meal.这两句中的a和the有什么区别吗?可不可以混用呢?

a和the有何区别His mother is making a meal.和Their parents are making the meal.这两句中的a和the有什么区别吗?可不可以混用呢? 定冠词the和不定冠词a/an有何区别? Lucy's mother is ill in hospital=Lucy's mother is ill in the hospital 有何区别?为什么? at sight 和 at the sight of 有什么区别?（ ）his mother,the boy stoped crying.我在自学英语, he’s 和his区别 比如his mother 和he’mother 可以互换吗 英语小题一道My mother has a car_____yours.A.as B.like选哪个呢?为什么呢?还有.as和like有何用法上的区别? The day of his birth 可以换成The day of his birthday是不是更好,二者有何区别? His team played the orange team.与His team played with the orange team.有何区别? during the holiday和on the holiday有何区别 英语：by the hour和by a hour有何区别 The policeman asked the boy-------?A where was his mother B where his mother C where his mother is D where is his mother other 和the other 的区别his mother and ______ family members think Simba must have died.A.other B.others C.the other D.the others为什么不可以是A 提问：the woman with a dog is his mother.____ woman ____ his mother? a cecond time与 the second time有何区别 take the risk与take a risks有何区别 at the shop,in a shop,you 有何区别 英语翻译The Netherlands和Holland有何区别? The first three 和three first 有何区别