I think you should go back to your_____ plan, which is much more practical than the present one.

No matter how much time you spend planning a trip, things still _____ go wrong and air travel is no exception—from weather delays to lost luggage.

The police came running and       the crowd.

In________，people in that village were very poor.

--What do you think of Harry, our new classmate?--I am not sure, but he is always asking ______ questions.