When deeply absorbed in work, ______ he often was, he would forget all about eating or sleeping.

To avoid his shop being stolen again, he thought it over and at last decided to set a security________ in it.

His parents wanted him to be a doctor, _____ they thought was a steady and well-paid job．

We know _____better and _____ the unfinished workof perfecting the union falls to each of its citizens.

Do you like Zhang Bichen’s songs—Yes, she is the winner of The Voice of China Ⅲ. I can’t think of anyone with ____ voice.