语法与词汇 They couldn’t see a _____ of hope that they would be saved by a passing ship.
【正确答案】 D
【答案解析】句意:他们看不到能为经过的船所救的一线希望。a gleam of hope表示“一线希望”。grain谷物;颗粒;少量,微量。span跨度,跨距。slice薄片。