If you want to know the train schedule, please ___

If you want to know the train schedule,

She wants to know if it is 600 milesan hour ______ the newest plane can go.

If you want to ring back, you have to ______.A．redial the telephoneB．know the free telepho

If you want to preorder books, you dont have to______.A．fill out a form. and sign itB．know

If you want to know the times of buses, please ____________ at the office.A、informB、in

If you want to know the train schedule please ________ at the booking office.A) ac