I’m so sorry that you didn’t win the skating marathon.－How long _____ you ______?－I skated for 5 hours.

Waste paper and bottles are collected_____ recycling . [ ]

Where are the police station?—Go_____ the quiet park on Center Avenue.[ ]

My school begins at 8 o’clock in the morning. So I have to ___ school before 7:50 a.m.

What’s this______English?—It’s a car.[ ]