There is no _____ ___ _____ that brave firemen play very important roles in our life, and they always rescue the injured from fire scenes regardless of personal safety.
Areason
Bdoubt正確答案
Cbasis
Dinstance
答案與詳解
B
正確答案
「There is no doubt that...」是固定片語,意為「毫無疑問...」,為英文常見句型。
逐選項解析
Areason原因片語✕ 錯誤
reason 是「原因」,「There is no reason to/for」才通,不接 that 子句表「毫無疑問」。語意也不符。
Bdoubt固定片語✓ 正確
There is no doubt that + 子句 = 毫無疑問…,為英文最常見的固定句型。題意「毫無疑問勇敢的消防員在生活中扮演重要角色」完全合拍。