It's high time that (the government made strict regulations on food safety issues).It's high time that 句型表示“早該是……的時候了”,謂語動詞用一般過去式.從句謂語通常用過去式表示現(xiàn)在或將來,有時也用過...the government should formulate severe laws and regulations on food safety issues可以嗎這個句型用一般過去式更多些，用should do句型也可以。