12. I'm not surprised Margaret's ill. With all the voluntary work she's ___ really been doing too much. D. taken to B. taken on C. taken in A. taken off an anti-drug campaign. C. taking part 13. At present we are B. carrying out D. joining with A. setting up for 14. At the station, we often see the sigh-...... for pickpockets. A. Watch on B. Watch out C. Watch up D. Watch at 15. Let's wait here for her; I'm sure shell A. turn down B. turn off C. turn over D. turn up 16. UNESCO.... .. United Nations Educational, Scientific and Cultural Organization. A. stands for B. brings about C. takes after D gets across 17. Don't forget to your gloves on. It is cold outside. A let B. make C put D. fix 18. The passengers had to wait because the plane.. off one hour late. A. took B. turned С. cut D. made 19. Be careful! The tree is going to fall. A. Look out B. Look up C. Look on D. Look after 20. The bomb exploded in the garage; fortunately no one hurt. A put on B. went off C. got out D. kept up .and tried a larger size. 21. These shoes felt too tight, so I took.......... B. off them C. them away D. them off A. away them 22. My father still hasn't really recovered from the death of my mother. C. took over D. looked over A went over B. got over 23. I can't walking. Can we stop and have a short rest? B. get on C. go up D. get up A go on