A __________ program on TV is calling on people to donate money or other things to the people who have suffered from the flood in Henan Province.
As she _____ the newspaper, Granny _____ asleep.
I ______, but I was prevent by the heavy rain.
It was not until then that I came to know knowledge ____ only from practice.
I don’t really work here, I _____ until the new secretary arrives.
After the new technique was introduced, the factory produced______ tractors in 1998 as the year before.