Who was it that won the US Open?
在美国公开赛上获胜的是谁？
She made it her business to find out who was responsible.
她一定要查清楚到底该谁负责。
Who could forget his speech at last year's party?
谁能忘记他去年在聚会上的`讲话呢？
Who sets the standard for water quality?
水质标准由谁来制订？
Who took the decision to go ahead with the project?
是谁决定继续这项工程的？
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