A municative satellite ________ as much as 3.5 tons was sent up into space last week.A.weighingB.weighedC.to be weighedD.being weighed
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A解析考查非谓语动词。句意：上周向太空发射了一颗重达3.5吨的通讯卫星。此处weigh是不及物动词，意为“重”。weighing as much as 3.5 tons是定语，修饰satellite, satellite与weigh之间是主动关系。后三项中weigh都是及物动词，表示“称重量”，语义不符。