Jack often goes to school        bike.But today he goes to school        the school bus.

• A. on; by
• B. by; by
• C. by; on
• D. on; on

I think you can        to the restaurant. It’s a little far.

• A. by bus
• B. take a bus
• C. on foot
• D. walk

We can go to Beijing        the train.

• A. in
• B. on
• C. at
• D. by