Ben went to the beach last weekend.（改为一般疑问句）
_____ Ben ____ to the beach last weekend
I was very busy last Monday.（改为一般疑问句）
____ _____ very busy last Monday
They played basketball this afternoon .（对划线部分提问）
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_____ ____ they _____ this afternoon
Mary reads English every morning.（改为否定句）
Mary _____ _____ English every morning.
He did his homework just now.（改为否定句）
He ____ _____ his homework just now .