1. How much do you pay for this computer ?  How much ………………….  What is .………………………… 2. The last time Joe heard from his family was in June.  Joe ………………………………… 3. This is my third visit to Ho Chí Minh City.  I have ……………………………………….. 4. Jack wants to drive to work, but he doesn’t have a car.  If Jack ……………………………………….. 5. We were late because of the heavy traffic.  If the traffic ……………………………………. 6. Why don’t you ask your teacher for advice ?  If I were ……………………………………. 7. I’ll never see you again if you don’t tell the truth.  Unless you …………………….. 8. The tea is so hot that I can’t drink it.  The tea …………………………. 9. Mexico City is more densely populated than Tokyo.  Tokyo is ……………………………………… 10. Sydney is larger than any other city in Australia.  Sydney is ………………………………………