42.Have you ever complained (　　　 )these things?

41.He was late (　　　 )work yesterday.　　　 13.Could you help me (　　　 )my homework?

40. I will be back (　　 )a minute.Please wait here.

39.Xiaoming, please put your books (　　　　 ).You can put them in your bag.

38.Because (　　　 )the accident,we have to put (　　　 )our meeting to next week.

37.It’s cold outside. Please put (　　　 ) a coat.　　　 8.Please put (　　　 )a map on the wall.

36.When you finish reading the books,please put them (　　　 )onto the shelf.

35. Put　 (　　　　 ) the fire. It’s dangerous to play (　　　　 )it.

34.Please pick (　　　　 )the banana peels and throw them (　　　　 )the dustbin(垃圾箱).

33.I can’t find the solution (　　　　 )the problem.