Shares in Tesco opened nearly 2% higher following the sales update.
Chief executive Philip Clarke said: "Our customers are seeing the evidence of the changes we're making and they're telling us they like what they see."
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He said he would be returning to his first love of reporting.
Theresa May called on to say if stealth taxes and borrowing will pay for proposed health spending.
He is poised to be Colombia’s youngest president in more than a century when he takes office in August.