Do you usually go to school _______bus or _______foot

It is believed that high achievers work toward personal standards of excellence ______ material rewards.[ ]

Jenny goes to school on foot．Ittakes her about half ____ hour to get there． A．an

The plastic bottle, __________top cut off, is used to grow a flower in.

The 2010 Asian Games is ____ a big event for the Chinese. It’s also a big event for the whole Asia.