( ) —What’s he doing?
—He’s _________ books.
A. read B. reading C. reads
( ) I like _________ best, because it’s hot, I can swim and eat ice cream.
A. fall B. summerC. spring
( ) — Where does the rain come from?
— It comes from the______.
A. soil B. clouds C. sun
( ) Stop at a _________ light.
A. redB. yellowC. green
( ) An elephant is much _________ than a mouse.
A. longer B. bigger C. smaller