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            • 1．

              －Shirley's second child is due next February.

              －By that time，the new house ________ to welcome the new baby.

              A．will be painted
              B．will have been painted
              C．has been painted
              D．had been painted
              难度：中等
              解析 收藏 试题篮
            • 2．

              —Shirley’s secondchild is due next February.

              —By that time, the new house _______ to welcome the new baby.

              A．will be painted
              B．will have been painted
              C．has been painted
              D．had been painted
              难度：较易
              解析 收藏 试题篮
            • 3．

              By the timeAlicereturns home from America, her son _________ from university.

              A．will graduate
              B．has graduated
              C．has been graduating
              D．will have graduated
              难度：难
              解析 收藏 试题篮
            • 4．

              By the time scientists 　　　the fundamental structure of dark matter, I’m sure that man 　　　

              amazing advances in science.

              A．figure out; has made
              B．will figure out; will make
              C．figure out; will have made
              D．will figure out; will be making
              难度：中等
              解析 收藏 试题篮
            • 5．

              By the time Jane gets home, her aunt____________ for London to attend a meeting.

              A．will leave
              B．leaves
              C．will have left
              D．left
              难度：较易
              解析 收藏 试题篮
            • 6． — I hope youˈll make good efforts while Iˈm away.

              — Be assured! Youˈll be amazed at what ________ accomplished when you get back.

              A．will have been
              B．has been
              C．was
              D．would be
              难度：中等
              解析 收藏 试题篮
            • 7． If Tom wins tomorrow, he _____thirty races in the past four years.

              &;

              A．will win
              B．has won
              C．would have won
              D．will have won
              难度：较难
              解析 收藏 试题篮
            • 8． By the time this letter reaches you, I ______the country.

               

              A．had left
              B．has left
              C．will have left
              D．left
              难度：难
              解析 收藏 试题篮
            • 9． By the end of next year, my father ________ on the farm for twenty years, where I once _______ for a few days in my childhood.
              A．will work; stayed
              B．will be working; had stayed
              C．will have worked; stayed
              D．has worked; had stayed
              难度：中等
              解析 收藏 试题篮
            • 10．

              A big factory ________ in my hometown by September next year.

              A．will have built
              B．will have been built
              C．has built
              D．has been built
              难度：较易
              解析 收藏 试题篮
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