People all around the nation were so excited upon the return of the three astronauts. [ ]

The dog took a piece of meat and ______.

Little Tom decided to ______ the bad habit of sleeping in class.

Early experiences taught me not to be overly _about shopping by mobile phone because there is a high risk of being cheated．

I shall never forget those years ______ I lived in the country with the farmers, ______ has a great effect on my life.