Too high house prices can be brought under control,_______ the government introduces a series of regulatory policies.
What the teacher said in class set all the _____ a lot.
By the time I _____the railway station, the train _____.
_____ teaching in a university, he also spent some time teaching in a night school.
Why do you want a new job_____ you've got such a good one already?
I couldn’t get to sleep, but _____ all night.