John fell asleep _________ he was listening to the music
I was riding along the street and all of a sudden,a car cut in and knocked me down— You can never be________careful in the street [ ]
black clouds in the sky! I think it’s going to rain.
Michelle with her children arrived in Beijing on March21. She started visit to China.
Did you go to the last sale in Guomao—Sure. It was really a good one. People didn’t leave 11:30 p.m..