Choose the best sentence that can be made from the word cues given

Choose the best sentence that can be made from the word cues given
Câu 37: My father / used / go / work / car / but now / he/go/bus.
A. My father used to go to work on car but now he goes on bus
B. My father used to go to work by car but now he goes by bus
C. My father used to go to work by car but now he going by bus
D. My father used to go to work on car but now he goes by bus
Câu 38: 1/ look forward / make / own conical hat / Tay Ho village / Hue.
A. I look forward making my own conical hat in Tay Ho village in Hue.
B. I look forward to make my own conical hat in Tay Ho village in Hue.
C. I look forward to making my own conical hat in Tay Ho village in Hue.
D. I am looking forward to make my own conical hat in Tay Ho village in Hue.
Câu 39: You/think going / school / foot / good / our environment?
A. Do you think going to school on foot is good for our environment?
B. Will you think going to school on foot is good for our environment?
C. Do you think going to work by foot is good for our environment?
D. Do you think going to school on foot will good for our environment?
Câu 40: They/live/Moscow / before/they/move / London.
A. They lived in Moscow before they had moved to London.
B. They had lived in Moscow before they moved to London.
C. They had lived in Moscow before they had moved to London.
D. They was living in Moscow before they moved to London.