47.We discussed this problem for several days, but couldn＇ t come to a( n) .

13.Only years laterthe truth about the matter.

12.Let＇s go on a picnic this weekend, ?

11.Under no circumstancesthe party.

10.It washe arrived homehe realized that he had left his keys in the office.

9.Everyone is in the classroom, ?

8.There used to be a theater here, ?

7.Could you tell usthat causes so many different results?

6.Rarelythe importance of protecting this kind of rare birds.

5.It is the woman teacherhelps the little girl.

4.Mary＇s friends don＇t believe what she says about the thing, ?