The machine will continue to make much noise we have it repaired.A、whenB、becaus

游客2024-08-04  9

问题 The machine will continue to make much noise we have it repaired.

选项 A、when
B、because
C、if
D、unless,

答案 D

解析 句意:如果我们不把机器修理一下,它就会一直发出噪音。本题考查条件状语从句。unless引导条件状语从旬,表明如果不按照状语从句中的建议行动,就会造成某种后果。
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