1) The car's engine is beginning to act up.

2) I hope you'll act up to the good advice I've given you.

3) to act up to one's principles,etc.

4) I hope that he will act up to his promise.

5) The kid likes to act up for the benefit of anyone who cares to notice.

6) We should act up to those principles and examples.

7) Mr Ye tried to act up to his reputation.

8) The children always act up at home in holidays.

9) The car's engine began to act up.

10) Do you always act up to your convictions?

11) I to act up to that instruction.

12) I hat it when you act up.

13) I endeavored to act up to that instruction.

14) Watch Ricky. He sometimes likes to act up in class.

15) He like to act up and pretend that he is special.

16) If you act up to your promise,(http:///act up.html) we are going on cooperating with you.

17) Little children always act up with their parents at home.

18) What you say means very little unless you act up to it.

19) The children always act up when their mother is out.

20) We need to act up and stand for what we believe in.

21) When the girls tease him,() he doesn to act up.

22) Watch Ricky, he sometimes likes to act up in class.

23) Sometimes they act up and force you to take a stand.

24) Watch Ricky. He at whiles likes to act up in class.

25) The young herdsman briskly mounted a horse that was inclined to act up with an unaccustomed rider.

26) The question was so unexpected that , for a moment , she was at a loss how to act up properly.

27) Her five - year - old daughter likes to act up before scores of visitors.

28) When the girls tease him,he doesn't quite know how to act up.

29) If the pressure is too low, the heating system will act up.

30) He to have high principles, but he does not always act up to them.

1) The young herdsman briskly mounted a horse that was inclined to act up with an unaccustomed rider.

31) Jack always used to act up when his mother wouldn't let him watch TV.

32) Have you noticed around spring men start to act up a bit?