4 Complete the negative sentences (X) and questions with one word in each gap.

1 These plants are grown in warm countries. They aren't grown in cold countries. X Where are they grown?
2 Tigers are found in India. They aren't in Africa. X They are in any other country?
3 St David's Day is celebrated in Wales. It is in England or Scotland. X When is it?
4 Glass is made of sand and some chemicals. It is of rocks. X How is it?