依次写出含有与f共同读音的字母(大小写)。_______________________________________________________.
---What ______ is it, mum? ---It’s _______o’clock. ---It’s ______ for school. -----Goodbye, mum.
---What are _________? ---They are _________.
---Happy Birthday! _____ _____ are you? ---I’m _________.
---_______ is my _______? ---It’s behind the ________ ---Where’s my _________? ---It’s ______ the desk.
--- _____ is ____ girl? --- ______ my friend, Yang Ling.