Due to the heavy rain and flooding, ten million people have been forced ________ their homes.A.leavingB.to leaveC.to be leftD.being left
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B解析句意：由于本次洪水，一千万人被迫离开家园。本题中的ten million people为主语，设空处为主语补足语。主语与主语补足语之间存在逻辑上的主动关系，故排除C、D两项；而force sb. to do sth.为固定结构，排除A项，故B项为正确