1.(should)be discussed2. it (should) land3. hadn’t forced me4should/ought to/ must be allowed to learn/study5.would have been saved6.should break down7.could not have finished8.shouldn’t swim9.would have passed10.were to do it11.you asked12.was too busy to call13.might/could/would have shown you around14.had followed my parents’ advice15.had adopted16.(should) be started17.did some housework18.are popular among/with them19.were walking20.had been away21.hadn’t fallen behind22.(should) be put off23.might/would have been lost24.strict messures (should) be taken Representatives attending Copenhagen Conference recommended that ____________________ (采取严厉措施) to reduce carbon emission.25.were in my position26.If I had learned English27.have survived28.but for 或 if it had not been for 或 had it not been for29.had followed30.should sell well31.have stayed at home32.should be operated on 33.hadn’t give away34.wouldn’t have dropped out (of school) He wasn’t given enough financial support, otherwise he ______________ (不会辍学). (drop)35.measured hadn’t been taken/ no measures had been taken