Question

Answer 1

11. She goes to school by bike

12. He goes to school by foot

13. They walk to the park

14. We go to HCM city by plane

15. He goes to work at a quarter past seven

16. They get up at a quarter to seven. 

Answer 2

she goes to school by bike
he goes to school on foot
they walk to the park 
we go to ho chi Minh city by plane 
he goes to work at a quarter past seven
they get up at a quarter to sever