123. While in recent months _____ a surge in the percentage of adult citizens who walk
to and from work, the “Walk for a Healthy Future” campaign is not a big success.
(A)we have
(B) we have been
(C) there has
(D)there has been
詳解 (共 2 筆)
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surge 激增（可數名詞）there ...
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儘管步行上下班的市民比例有提升，但為未來...
私人筆記 (共 2 筆)
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123. While in rece...
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