Wherever he is, he makes ______ a rule to give his mother a call every day.

——What impresses you most about your hometown?——The street, the length of which is four times _______ it was eight years ago.

Only when you told me about it ________ what a silly thing I had done.

Since there’s no more work to do, we might just ________ go home. 

--- Have you got the results of the final exam?--- Not yet. It will be a few days _________ we know the full results,