______ you eat the correct foods ______ be able to keep fit and stay healthy.
| A．Only if; will you | B．Only if; you will |
| C．Unless; will you | D．Unless; you will |
We had not waited __________ she came.
| A．long before | B．before long | C．after long | D．soon after |
My sister _____ Tony for ten years next year.
| A．has been married to | B．had been married with |
| C．will have been married to | D．will have been married with |
—Daddy, can you buy me a new MP3 when you go to Beijing?
—You ______ get one if you are admitted to a key middle school.
| A．could | B．shall | C．may | D．can |
Great changes _____ in China in the past 30 years and many Chinese are living a happy life today.
| A．took place | B．were taken place |
| C．have taken place | D．have been taken place |
Unfortunately, the couple _______ after years of quarrels .
| A．broke down | B．broke up | C．broke out | D．broke off |