A27. i wish people … their cars less often in the future. 1) had used; 2) to use; 3) used; 4) would use. a28. how much better i … now if in my youth i … the advantage of sensible advice! 1)would write, had; 2)would have written, had; 3)would write, had had; 4)would have written, had had. a29. the advice she gave me … very helpful. 1) is; 2) are; 3) was; 4) were. a30. i must have … tomorrow. 1) my hair cut; 2) my hair to cut; 3) my hair to be cut; 4) to cut my hair. a31. she saw … in the garden. 1) he reading; 2) him reading; 3) him to read; 4) he to read.
28 1)
29 3)
30 4)
31 1)