__________ volunteers will be needed for 2014 International Horticulture Exposition (国际园艺博览会) in Qingdao.— Let’s go and join them.
What’s wrong with my son, doctor? — ____________ serious, just a slight cold. He’d better drink some water.
_______ are my brother and sister.
December is the ______ month in a year.
Won’t you like to come to Li lei’s birthday party?-I will if I ______