35.—I haven＇t seen you for ages! Where have you been?—I went to Ningxia andthere for one year, teaching as a volunteer at a primary school.

20.In translation big problem islinguistic interference.

19.The care ofelderly has become hot topic in the present society.

18.Susan came out in the speech contest.

17.You left "m" out of common.

16.It isgreat pleasure to go tocinema after such hard work.

15.The investigators found that more should be done for in India.

14.When Linda was a child, her mother always let her have breakfast alone.

13.The cost ran intodollars.

12.Nearly of the 9000 species of birds feed on insects.

1 1. The exam will be on the first half of the book, which means we＇ 11 have to finish .