.Miss Li ________ as a biology teacher for fifteen years in our school, and now she is Party secretary of our city.
The farmers eat only 20 percent of fruits they grow, the rest of which _____ sold to the supermarket.
There will be a twenty-minute break during the performance, ______ people can go to the restroom or buy some snacks.
—What’s worrying you, dear? —Nothing. I was just thinking about the problem ______ tomorrow.
A Sichuan government official expressed their thanks through CCTV for the aid they ______ in the last three years.
Only after they had carried out over ten experiments ______ the decision.