______ in her novel that she didn’t hear what I was saying．

According to a recent U.S. report, children spent up to 25 hours a week _______ TV. 

It _________ there is a disaster _________ people will think much of the safety.

Many students in this school make __________ a rule to come to the evening classes even on Saturdays and Sundays.

 ---- Do you know our town at all?---- No, this ______ the first time I ______ here.