That actor ________ Toronto.

John has put on so much weight recently that his mother has to ____all his trousers to his measure.

We are working ______ to get the work done on time There is only one day left before it must be finished [ ]

History is ______ a subject that lets us know something in history ,it also tells us a lot of truths.

Microblog is a platform ________ people can expresstheir thoughts and communicate with each other by sending posts.