30. The No. 5 subway line, ______in October, 2007, has greatly improved the traffic conditions in Beijing.
A poet and artist ____ coming to speak to us about Chinese literature and painting tomorrow afternoon.
The father as well as his three children ____ skating on the frozen river every Sunday afternoon in winter.
We live day by day,but in the great things the time of days and weeks ____ so small that a day is unimportant.
An iron and steel works, with some satellite factories, ____ to be built here.
Here is a message of importance to every man and woman who ____.