1. i (to be) mad because they (to be) late. 2. they (not\to be) able to come to us as they (to be) too busy at work. 3. the bags (to be) too heavy to carry. 4. it (to be) warm enough to stay outside without a coat. 5. i called kate but she (not\to be) at her working place. 6. (to be) the dinner tasty? 7. when she called, i (to be) at the bathroom.