1) My sons do their homework everyday.
2) The girls go to the sport.
3) These dogs guard my house.
4) The students know these subjects well.
5) They always buy tickets in advance.
6) The boys play volleyball very well.
7) The boys take part in competitions.
8) They write articles about animals.
9) They want to talk to you.
10) They go on business trips every month.
11) The girls walk in the park every evening.
12) These trees grow well in this climate.
13) They ask me a lot of questions.
14) They usually have coffee for breakfast.
15) They sleep well.