下列句子中的“之”字的用法和解释归类正确的一项是①胡为乎惶惶欲何之 ②水之积也不厚 ③覆杯水于坳堂之上 ④响穷彭蠡之滨⑤鹏之徙于南冥 ⑥楚之南有冥灵者 ⑦众人匹之 ⑧之二虫又何知⑨知来者之可追 ⑩报养刘之日短也 ⑾句读之不知 ⑿蚓无爪牙之利，筋骨之强

I wonder if she______us,but I think if she______us we will be able to complete the task ahead of time

The government has lost a great deal of _____because of the large increase in food pries

I have some problems with my health. Can you give me some _______

Mum，can I go on a holiday with my classmates this summer vacation?– OK．You __________ have a chance if you get along well with your studies．