单项选择题

A. Invest into a mutual fund. B. Use the discount tickets.
C. Quit his eating-out habit. D. Use only paper bills and save coins.
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单项选择题
A. He’d like to have the windows open.B. He rarely leaves the windows open.C. He thinks the air is polluted.D. He’ll help her close the windows.
A. He’d like to have the windows open.
B. He rarely leaves the windows open.
C. He thinks the air is polluted.
D. He’ll help her close the windows.
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