It’s raining outside. ________, the traffic policeman is still working outside. A. Though B. However C. Because
I hear ________ your grandpa __________ your grandma like watching Beijing Opera.
---- Will you answer the telephone? It ________ be your mother. ---- Sorry, I _______. I’m very busy.
We can’t buy anything because______ of the shops are open at this time.
Simon improved his way of study.______ , he has made great progress.
—Is this your ID card? —Yes, it is. ______