题干
He usually goes to school ________ his bike, but sometimes he ________ a taxi to school.
A：with, on
B：by ,takes
C：on, with
D：on, takes
答案(点此获取答案解析）
D
He usually goes to school ________ his bike, but sometimes he ________ a taxi to school.
A：with, on
B：by ,takes
C：on, with
D：on, takes
