It 形式主语引导的句子与其他句型转换.

It 形式主语引导的句子与其他句型转换.1.It take Tom four years to become a good driver.Tom( )becoming a good driver.2.He spent 2 hours in doing his homework yesterday.It took him two hours( )his homework yesterday.3.It is a happy thing to pass the examination.To( )is a happy thing.4.To ride in the park is safer than in the busy street.It is safer( )than in the busy street.5.Buying my father a gift on Father’s Day is my great pleasure.It is ( ) my father a gift on Father’s Day6.Learning English well is very important.It is very important( )English well.7.Running on ice is very dangerous.It is very dangerous( ).8.Telling mother the news was quite necessary.It was quite necessary( )mother the news.9.Reading the book is really interesting.It is really interesting( )the book.10.Wnting well is always a difficult task.It is alaways a difficult task( ).11.Betty’s greatest fun was piloting a jet plan.It was Betty’s greatest fun( )a jet plane