My father will be back from Nanjing ___ a week.A.in B. after C. behind
---Could you tell me ? ---He will be an actor.
While the boy ______ down the street, the UFO _____ .
He went there as a volunteer on a ________ program.
---Mum, I’m leaving for Beijing tomorrow morning. --- Oh, good. But be sure to phone me _______ you get to Beijing, please.
There is going to _______ a basketball match on the playground this afternoon.