单选题 The travelers were ready to enjoy the spectacular tidal waves when suddenly a thick fog came up and obscured the whole scene.
【正确答案】 A
【答案解析】[解析] 句意为：游客正准备观看壮观的潮汐，这时浓雾飘过挡住了景观。blur意为“使……模糊”，最符合题意，belittle意为“轻视、贬低”；ban意为“禁止、取缔”。