24.While reading, you can make a mark _____ you have a question.
You ______ tell Margaret --- I don’t want her to know about this matter .
Human beings are different from animals _____ they can use language as a tool to communicate.
The Chinese parents don’t care what a hard life they themselves live but are determined that their children receive ______.
_____ so much electrical equipment , wood and paper in one place , there is a danger of fire .
--- What did you think of yesterday’s film ? --- Well , I ________ when the film was only half way through.