After dinner, he stayed at home and played violin.

e stuck at the airport because of the heavy fog,otherwise we ________ here in time for the conference.

I haven’t seen Jack for three days, is heill—_______. His mother told me that he was in hospital.

When Nanjing Metro Line 3 came into use, it became much to travel from the north of the Changjiang River to the city centre.

The latest wave of smog(雾霾) ,_____ first swept into Shanghai and Jiangsu province on Dec. 1st ,_______ at least four car accidents due to low visibility.