-- What do you think of Miss Wang, your English teacher? -- She’s very ______ to our need for encouragement.

He lives in a _____ city, I mean in a city that is ______ ．

After the new technique was introduced, the factory produced______ tractors in 1998 as the year before.

The twins are so much _______ that their parents can’t tell one from the other sometimes.

In these years, the shortages of water has become a ______ problem.