Read and write.用所给单词的适当形式填空。
1. — Whose pencils ________ (be) these?
— They are ________ (Amy).
2. He ________ (like) the kite very much. I ________ (like) it too.
3. Miss Zhang ________ (have) many books. They ________ (be) thick.
4. — Touch this, Mary. How ________ (do) it feel?
— It ________ (be) thin.