________you never plan to visit the polar bears in the North Pole or the penguins in the South Pole,now it is the proper time to start thinking about that.
A.Until | B.Unless | C.As long as | D.Even if |
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________you never plan to visit the polar bears in the North Pole or the penguins in the South Pole,now it is the proper time to start thinking about that.
A.Until | B.Unless | C.As long as | D.Even if |