Exercise 1. Use the sentences to make questions. Begin your question with the word(s) in bruckets. 1) He does experimental work. (How often?) How oflen 2) I participate in scientific conferences. (How often?).. 3) We perform the work in couperation with other scienlists, (Which scienlists /usually? . 4) Goorge studies English. (Where?) 5) They publish articles every year. (How often?) 6) He works at the candidate thesis. (Why?) 7) You carry out interesting experiments. (How often") 8) He presents his paper to the conference. (When?).. 9) Our department collaborates with many industrial enterprises.
