It is generally believed that _____ study, we can gain both knowledge and skills[ ]

_____, I have to write the words on the paper becauseshe doesn’t know Chinese.

Your spoken English is much better now.– Thanks. Our English teacher often asksme ______ English as ____ as I can.

Who told you my address ? — I don’t remember clearly. It _____ Li Mei.　 —It _____ Li Mei. She doesn’t know it.

On the surface of the water________, which spoiled the beautiful scenery of the park.