–Who are those people with the banners (标语)?–A group _____ itself the league for peace.
The girl devoted all her spare time she had ___ others.
This is such a wonderful film ___ we have never seen.
___ nice, the food was sold out soon.
I think ___ knowledge of the Internet is ____ must in our work today.
Shelly had prepared carefully for her biology examination so that she could be sure of passing it on her first ______.