Maria looked around on the playground looking for something.A. even thoughB. even ifC. on

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A. even though
B. even if
C. only if
(答案→)D. as if
解析：考查连词用法。even though即使；even if 即使，虽然；only if 只要；as if
似乎；句意：玛丽环顾操场，似乎在寻找什么。故选D。