E-book ________by more and more people in our daily life now.
They are late. The film __________ for five minutes.
Mr. Green _______ to Beijing two weeks ago. He ______ there many times.
-----What’s the population_______the U.S.A.? ----- the U.S.A.has _______population of 297 million.A. of, a B. of, / C. in, a D.in, /
of the teachers in our school women.
----- Which is your favorite sport, swimming, running or skating?------_______ of them. I like water skiing best.