277. The policeman ________ the thief, caught him and took him to jail (prison).
__________ some medals came to live in the sea is not known.
____ method you choose, so long as you finish the job on time.
I am so glad that I have found the same modern computer ____ I am working on.
. We would do more such exercises in the future, I think, ____we did yesterday.
. ____ it will do us harm or good remains to be seen.