Rephrase the bold part of the following sentences in as many ways as possible using modal verbs. 1 It's your duty to phone your Aunty May on her birthday. You should/ought to phone your Aunty May on her birthday. 2 I'm sure that I didn't leave my mobile phone at home. 3 It wasn't necessary for Darren to send me an email but he did. 4 It's against the rules to take electronic devices into the exam hall. 5 It is 90% certain that the company's new robot will be ready in spring. 6 Christopher didn't manage to contact his cousin on Skype. 7 It is likely that textspeak will have its own dictionary soon. 8 How about going to that seminar?

1. You should to make a phone call to your Aunty May on her birthday.

2. I might not have left my mobile phone at home.

3. Darren didn't need to, but he sent me an email.

4. You must not take electronic devices into the exam hall.

5. The company will probably have their new robot ready in spring.

6. Christopher couldn't contact his cousin on Skype.

7. It may be that textspeak will have its own dictionary soon.

8. Could we consider attending that seminar?