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.