Đề bài:Rewrite these sentences as suggested
1.Mary can't go to school because she is too young
=>Mary isn't old enough to go to school.
2.Lan spends 3 hours a day doing her homework
=>It takes Lan 3 hours a day to do her homework.
1.Mary can't go to school because she is too young
=> Mary isn't old enough to go to school.
2.Lan spends 3 hours a day doing her homework
=>It takes Lan 3 hours a day to do her homework.