-Do you know _______ World Water Day is?-On March 22nd.
There is a beautiful garden _____ Kangkang’s house.
---- _____ is it today? ---- It’s Tuesday.
---- Can you see many apples _____ the tree? ---- No, there are a few birds _____ it.
---- Where are my keys, Dad? I can’t find them. ---- Look! They’re under the table. You must _____.
There are many students ______ in the apartment.