Read and write.用所给单词的适当形式填空。
1. These ______ (craftsman) work very carefully. They make beautiful desks and chairs.
2. — Helen, where are you?
— I ______ (cook) in the kitchen.
3. There ______ (be not) any buildings now, but in the future, there ______ (be) three tall buildings.
4. We ______ (take) two art lessons on Wednesday afternoon, but yesterday afternoon we ______ (not take) the art lessons, because our art teacher wasn’t in Shanghai. She ______ (come) back next week.
5. Peter is good at ______ (eat). He likes ______ (eat) different kinds of food.
6. In the past, people ______ (use) paper to write letters.