We all find _________ important to do what the teachers tell us.
There was a rainstorm yesterday. The flood _____ the old bridge over the small river.
She finished the work _____ as soon as possible. She’s very happy now.
It’s a good song, _____ the lyrics(歌词)are not good enough.
—Do you know him?—I’m sure I’ve seen him _____, but I can’t remember the right place.
What can we students do _____ the environment?