Most animals have little connection with animals of a different kind, _______ they hunt them for food.
In order to produce more grain, it________that the area of farmland_____.
---Do you like the new pen? ---Yes, it_____ smoothly.
.The Red Army ____ more than 25,000 li and arrived at North Shanxi at last.
News reports say peace talks between the two countries _____ with no agreement reached.
---What made you so angry?