__________ in debt and faced with low wages , a lot of graduates in UK don’t have the ability to live independently .

When I opened the door, I found my father sitting in his chair, completely _______ in the humorous stories he was reading.

When ______ different cultures, we often pay attention only to the differences without noticing the many similarities. 

Don’t kill your precious time chatting online all day long. It’s impossible for the lost time          ,you know.

______ abroad for more than two years, he returned to his hometown.