Either the boy or his sister must have dinner here.
I heard you have ____ vacant position for a secretary. I’ve come to apply for ____ job.A. the, a B. a, the C. /, a D/ a, /
He has called several times this morning, ____ there is something very urgent.
You have to wear special clothing, a helmet and a life jacket ____ your raft gets turned upside down or sinks.
I wonder if ____ to come over to my family after work.
As I looked at the memorial, I thought about ____ terrible disaster it was for the people in Nanjing then and ____ they were to fight the Japanese invaders.