__________ to his scientific work, he has no time to care for his family affairs, which his wife always complains about. 

During the next ten years, she had to work hard _____ for the necklace.

 I'm busy now. I'm sorry I can't help ____ the flowers. 

The temple , _______ the Song Dynasty ,was pulled down last month. 

— How do you know so much about what’s going on in the countryside?— I’ve got a friend there who keeps me ________.