It’s said in the newspaper the 215 more new schools ______ in Zhengzhou by 2020.

Mr Li began to teach in this school, _______, some time later, she became popular with the teachers and students for her excellent teaching levels.

When did you _________ into this new house– Well, I _________ here for a month.

Not having work out the problem,leave the office．

The police came in __________ the thief attempted to rush out of the store