The gas leak was serious enough ____the police to evacuate the building
题目
The gas leak was serious enough ____the police to evacuate the building
1 because 2 why 3 for 4 since 5 to
答案
我认为应该选for.
sth be adj.+ enough for sb to do有“对某人来说,某事足以...地做”的意思.
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