题目内容
【题目】You must keep on working in the evening, you are sure you can finish the task in time.
A. as
B. if
C. when
D. unless
【答案】D
【解析】本题考查连词的用法。句意为：你必须在晚上继续工作, 除非你确信会按时完成任务。unless引导一个状语从句, 意思同if...not...，符合句意，为正确选项。
练习册系列答案
相关题目
题目内容
【题目】You must keep on working in the evening, you are sure you can finish the task in time.
A. as
B. if
C. when
D. unless
【答案】D
【解析】本题考查连词的用法。句意为：你必须在晚上继续工作, 除非你确信会按时完成任务。unless引导一个状语从句, 意思同if...not...，符合句意，为正确选项。
