The last line added was the Jubilee Line, which was open in 1979 the twenty-fifth anniversary of Elizabeth II being the queen.

____the population of Shandong Province—I can’t say exactly, but I know it ________ about 80 million.

What do you want to be ________-An English teacher.

It was so dark in the cinema that I could hardly _____ my friend. [ ]

Most computer users think it necessary for theirsoftware ________ regularly．