1、Do you have anything ___________(do) tonight?
2、__________(learn) more about Chinese culture,Jack has decided to take Chinese folk music as an elective course.
3、We travel on Day 2 to northern France ___________(visit) the World War Ⅰ battlefields.
4、Taking exercise ____________(regular) and having a balanced diet are of great importance to our health.
5、The most important thing is to try not to let a calm discussion turn into a heated _________(argue).
6、The key _______________(solve) the problem is to meet the demand made by the customers.
7、They were so careless as ___________(fail) to achieve our final goal.
8、This is the only way that I can think of __________(settle) the problem of water waste in urban areas.