–Let’s go hiking ________ staying at home, shall we? -- Good idea.
When we see Sign ________, we know it is a place for people to make a phone call .
--- Excuse me , could you tell me ___________?---Yesterday.
---Anny, don’t forget to_ _____the lights when you leave a room.---OK. Mum.
---Who is the boy over there? Is it John?--- No, it ______ be him. John is much taller.
---Please say “ I’m here ”when your name _____ ,will you ?--- Yes, Mr Hu.