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You can borrow my car        you promise not to drive too fast.
A.unless B.even ifC.in caseD.as lone as
D
句意为:只要你答应不开得太快,你就可以借用我的轿车。B,D选项不符合逻辑;unless 常与not等否定意义词连用。
【考点定位】考查主从句的逻辑关系。unless 除非(主句常有否定词not等)even if 即使(引导让步状语从句) in case 万一 as long as 只要(引导条件状语从句)
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