Our country provided the people plenty of things during the flood.A. inB. toC. ontoD. wit

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A. in
B. to
C. onto
(答案→)D. with
解析：in在里面;to 到,向;onto在……之上；with带有，伴随，用某种工具。句意：在洪水期间，我们国家提供给人们大量的物品。Provide sb with sth给某人提供某物。故选D。