1 He has got the key. I b) don't have to give him my key.
2 You a) mustn't open the box. It's dangerous.
3 Soon we'll b) be able to visit London.
4 She wanted b) to write the tests.
5 She must c) write the test.
6 What c) - bad advice!
7 Jonathan was ill. He c) had to stay at home yesterday.
8 The news a) was good.