1. While I was waiting at the bus stop, I noticed a new shop ___ had not been in the street the day before.
A. who B. which C. where it D. from which
2. Is this the reason ___ at the meeting for his carelessness in his work?
A. he explained B. what he explained
C. how he explained D. why he explained
3. Have you seen the film “Titanic”, ___ leading actor is the world famous ?
A. its B. it’s C. whose D. which
