When I was a student, I ______ to school ______ the bus
| A．used to going , by | B．used to go , on | C．used to go, by | D．was used to go, on |
When I was a student, I ______ to school ______ the bus
| A．used to going , by | B．used to go , on | C．used to go, by | D．was used to go, on |
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