--Oh! I came in a hurry and forgot to bring food.--Never mind. You can have ________.
I think teenagers ____________ to choose their own clothes.
---Lucy _________ really quiet but now she is very outgoing. ---Yes. She has changed a lot.
---How do you learn English? --- I learn English__________ making flashcards..
---What would you do if _________ eighty-year-old man fell down in front of you? ----I don’t know. Maybe I will help him.
As a volunteer of the 2012 London Olympic Games, which sign will you prepare to remind people to keep the environment clean?