29.(　　 )do you do with the problem?(What/How)

28.He is a good (　　　 ).(swim)

27.He was busy (　　 )(deal)with the affairs.

26.The (　　　　　 )discovered the black holes in the space years ago.(science)

25.Please give a (　　　　 )of the text in detail.(describe)

24.I sinerely (　　　　 )you success.(wish, hope)

23.How (　　 )have you been here ?Since I was born.

22.How (　　　　 )will you go to America? In a week.

21.How (　 　　　)do you go to the park? Once a week.

20.I hope (　　　 )(buy) a present for my parents on their birthdays.