Rewrite the sentences

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 ………………………………………