ng and learning are parts of the sameeducational experience, but unfortunately they are often thought of ___________separate

Has she had for the job—Yes, she has taught English for more than 10 years.

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’m afraid I’m not _____to help with the talent show, for I am fully occupied with my own project.

All the students ______ the floor ________ they heard a man ________“help”.