把此句改为过去式It takes me 15 minutes to finish this math problem

把此句改为过去式It takes me 15 minutes to finish this math problem It takes me 20 minutes to finish all my homework.(同义句转换) 连词成句 minutes to takes me homework my forty it finish it takes me about twenty minutes to ride to school,此句中的to ri 按要求改写句子1,It takes me 15 minutes to walk here every day（改为同义句 It takes me thirty minutes to do my homework.(改为同义句） It takes me twenty minutes to do my homework.改为否定句和疑问句. It takes me thirty minutes to read English every day.改为同义句 It takes me an hour to finish the project改为同义句 It took me fifteen minutes to finish the letter改为同义句 ___spen It took me fifteen minutes to finish the e--mail改为同义句 It takes me 15 minutes to go to school every day.把to do提前