I _____ 900 English words by the time I was ten。
The lady spoke loudly in public so as to__________ others’ attention.
When I got to the cinema, the film________ for 15 minutes.
We should try to prevent air pollution__________.
---He didn’t catch the train, did he?-- _________, because he was caught in the rain.
The book is________ interesting________ I can’t even drop it for a minute.