With the development of reform of education, many teachers are ________ some more effective methods of teaching. [ ]

You’ve _______ such a good idea, thank you. We’ll try it at once.

This morning my mother told me _____ she would attend a wedding party _____ she wouldn’t come back home for lunch.

E-mail is much _____ than long-distancecalling.

man, woman and child ______some history, enough at least, to survive in the world.