-----Alice, you clean the blackboard today, _________? ----- But I cleaned it yesterday.
Large quantities of water, as well as some other timely help,__________ since the serious drought hit Yunnan Province.
Above one third of the population in Beijing and Shanghai __________ netizens, but in poor areas, only three or four percent __________ online.
The factory used 65 percent of the raw materials, the rest of which __________ saved for other purposes.
The secretary and principal __________ at the meeting now.
We all think Mr. Smith __________ a new house if more new houses __________.