是"there has changed a lot"还是"there have changed a lot"?如题

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是
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是"there has changed a lot"还是"there have changed a lot"?如题
是"there has changed a lot"还是"there have changed a lot"?
如题

是"there has changed a lot"还是"there have changed a lot"?如题
there has changed a lot

there has changed a lot