Stop _______ on the ice. It’s too dangerous.A. skated B. skating C. to skate
Guangzhou subway Line 4 helps us to go to Tianhe ________ than before.
Every night I read books for _________ hour before going to ________ bed.
---Who cleaned the blackboard yesterday, Dick? ---John _________.
A talk on Chinese history ________ in the school next week.
I _____ 900 English words by the time I was ten。