complete the tag questions. 1. bill and tom were late for school, 2. pam has to stay at home, 3. bob caught a cold yesterday,4. they won't have any…

1. bill and tom were late for school, weren't they? 2. pam has to stay at home, doesn't she? 3. bob caught a cold yesterday, didn't he? 4. they won't have any lessons tomorrow, will they? 5. there aren't many interesting subjects, are there? 6. i should take this medicine twice a day, shouldn't I?