( ) (1)Students ______ their summer holidays.A. has B. having C. have
( ) These ducks very naughty! A. is B .are C was
( ) Let’s the flowers. A. to water B. water C. watering
( ) What this? A.is B was C are
( ) --- are those? --- They’re boats. A.What B.Where C.How
( ) Those are . A.tree B. flower C. flowers