单项选择题

A. The workers on the underground platforms were replaced by machines.
B. It became the first completely automatic railway in the world.
C. A completely automatic line was added to its network.
D. Its trains became computer-controlled.
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单项选择题
A. The man has finished his term paper. B. The man wishes he had done better this term. C. The man still has not finished his paper. D. The man wished the woman would help him.
A. The man has finished his term paper.
B. The man wishes he had done better this term.
C. The man still has not finished his paper.
D. The man wished the woman would help him.
单项选择题
A. Go to an art exhibition. B. Dine out with an old friend.C. See his paintings on display. D. Attend the opening night of a play.
A. Go to an art exhibition.
B. Dine out with an old friend.
C. See his paintings on display.
D. Attend the opening night of a play.
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