3. complete the sentences with the correct form of the word from the brackets. 11) when i (filled in / was filling in) the application form, i saw my previous employer. 12) you (should / must) carefully dressed for the interview. 13) the secretary (read / was reading) the cover letter, when the telephone rang. 14) you (shouldn’t / mustn’t) be late for the meeting. 15) in 2008 i (worked / has worked) for an american company. 16) 17) one (has to / may) earn money to support his or her family. 18) 2 years ago he (had done / did) a few training courses. 19) you (have been working / were working) since the early morning. you should make a break. 20) persuade the director that you are just the man he (needs / needed 21) as for your job i am sure we (will come / come) to an agreement. 22) charles (has been looking / looked) for a job for 6 months. 23) he (finished / had finished) writing the letter of recommendation by noon. 24) i (am / being) available for an interview at your convenience. 25) he (must / had to) leave his firm because it became bankrupt.