1, It is impossible for roses to grow in such poor ground.
2, It is difficult for handicapped people to shop in supermarkets.
3, That old typewriter is not worth repairing.
4, He is hardly likely to take poison.
5, Hers is difficult to answer adequately.
6, It's just when we wait long enough we'll get what we want.
7, It was something relievable when Trudy found out the truth.
8, Didn't it seem that he was the only pretending?
9, It won't be impossible that they'll soon find out what she's been doing.
10, It is at Mr Forster's ask that I wrote this letter to you.
11, It is capable of the device to detect potential engine failure.