三、It作主語的句型
1. It takes sb. to do（=sb takesto do）某人用多長時間做某事
例 It took the men a week to mend our roof.（= The men took a week to mend our roof.）
2. It's（just）（un）like sb. to do（不）像某人做某事的'風格
例 It was（just）like him to think of helping us.
3. It's（about/high）time that should /v-ed是該做某事的時候了
例 It's（about/high）time that we should take action.
4. It's the x-th time（that） have v-ed第幾次做某事了
例 It's the third time that he has failed the driving test.
5. It is/has been since continuous v-ed（延續性動詞）某動作已有多長時間不發生了
例 It's 10 years that he lived here
6. It was（not） before過（不）了多長時間某動作發生了
例 It was not long before they arrived.
