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2. Until I tell you, you cannot leave.

3. She'd rather eat Italian food than French food.

4. Susan is not as good at Chemistry as Sarah

5. When are John and Mary married?

6. He can make people understand when he speaks English.

7. Tom wishes he had watched the football match last night.

8. Yesterday we did such a difficult test that we couldn't finish it in two hours.

9. The man asked me how many students there were in my class.

10. She has been listening to the radio before seven-thirty.