3.Why have dogs been man's friends for thousands of years according to the passage? A.Because dogs are brave to watch the door for their master. B.Because dogs have helped people in many ways. C.Because dogs have provided delicious meat for many people.
18.What does Ms Allen do to help us learn new English words? A.She asks us to watch English films. B.She uses songs and stories in class. C.She tells us to read them many times.
8.How can the students protect the library books from rain?( ) A.Put them into their pockets. B.Cover them with raincoats. C.Carry them in plastic bags.