22. I _____ my university professor in the supermarket near my house, which was out of my expectation.
The factory used 65 percent of the raw materials,the rest of whichsaved for other purposes.
—Why does the lake smell terrible? —Because large quantities of water_______________.
One-third of the country____covered with trees and the majority of the citizens_______black people. A is;are B is;is C.are;are D.are;is
Was it not until you began to work —— how much time you had wasted?
After studying mass of data,they drew a conclusion ________China is still a developing country.