题目

In a second-hand bookshop, one might, _________pick up an old book that might be worth many pounds for a few pence. A. constantly        B. essentially C. specially         D. occasionally 答案：【解析】选D。考查副词辨析。句意：在二手书店里，人们有时候可能会花上几个便士就能买到价值许多英镑的书。constantly不断地，时常地；essentially实质上，本质上；specially特别地，专门地；occasionally偶尔地，有时候。

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