Listen, our teachers ______ Red Songs in the next room.A. sang B. are singing C. sings
I was supposed to________8:00,but I was late.
Mr Brown________Maria goodbye,and handed her the bag.
The custom________sending birthday cards began in the 19th century.
People in China________when they meet for the first time.
—What do you think of his talk on the Information Technology? —Oh,very good,It’s worth________.