You must let your manager understand the details of the feasibility study ______

游客2023-11-12  23

问题 You must let your manager understand the details of the feasibility study ______ by 5 o’clock this afternoon.

选项 A、without fail
B、without trouble
C、without failure
D、without difficulty

答案 A

解析 without fail是固定短语,意思是“必定,一定”,符合本题的题意。without difficulty的意思是“毫不费力地”,填入后,意思上讲不通。without trouble和without failure均不是固定的短语结构形式。
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