【简答题】I. Fill in the blank in each of the following sentences with a suitable preposition or adverb. 31. They discovered that they could shear sheep, take the wool, weave it and fashion the material ______ ...
【简答题】We all know the ers of fires. It’s good and necessary for a family to learn how to prepare for a fire. Here are some suggestions. Put a smoke alarm in the house. Smoke from a fire causes the alarm...