---Can you show me ______to use this kind of camera?---Sorry, I don’t know,_________.
---Where is Tom? ---I’m not sure. He _________ football on the playground.
Seeing their teacher _______ into the classroom, they stopped _______ at once.
He can speak _______ English _______ Chinese, although he is a Japanese.
Our English teacher _____ in the office because she has gone to America.
-Why not get your ears _______? They will be nice. -As a student, I'm not _________.